Positioning clamp structure for motor shaft machining

Abstract

The utility model provides a positioning fixture structure for motor shaft processing, which comprises a fixture base plate, a base plate, a first V-shaped block and a second V-shaped block, the base plate is integrally arranged at the top end of the fixture base plate, both the first V-shaped block and the second V-shaped block are assembled on a boss part at the top end of the base plate, a positioning pin column is embedded in one side of the top end of the base plate, and the positioning pin column is embedded in the boss part of the top end of the base plate. The first V-shaped block and the second V-shaped block are assembled on a boss part at the top end of the base plate, a positioning pin column is installed at the top end of the positioning pin column, a blocking plane corresponding to the first V-shaped block is arranged on the side portion of the shaft end blocking column, and a shaft end baffle is installed in the track groove. A blocking plane corresponding to a first V-shaped block is arranged on the side portion of a shaft end blocking column, a shaft end baffle is installed in a rail groove, a pressing assembly is arranged, a motor shaft can be comprehensively positioned and clamped, the motor shaft is firmly clamped, and therefore accurate positioning is achieved, deviation is reduced, and safe and efficient machining is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor shaft processing technical field relates to a kind of positioning fixture structures of motor shaft processing. BACKGROUND

[0002] Clamp refers to the device used in the process of mechanical manufacturing to fix the processing object, make it occupy correct position, to accept construction or detection, also called fixture, motor shaft needs to be positioned using clamp during turning and milling process, to ensure the precision of turning and milling, prior art such as patent No.

[0003] The above-mentioned disclosed clamp still has the defect that it only clamps the two ends, and the upper end and the lower end of the motor shaft lack effective clamping limiting effect. Therefore, we design a positioning fixture structure for motor shaft machining. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a positioning fixture structure for motor shaft machining to solve the problems raised in the above background.

[0005] The utility model discloses a positioning fixture structure for motor shaft machining, which can solve the problems raised in the above background.

[0006] In the positioning fixture structure for motor shaft machining, the pressing assembly comprises two hinge connecting rods, two horizontal pressing strips, two fork seats, and two ball head hinges, the two hinge connecting rods are correspondingly arranged on the boss parts of the base plate, the ball heads of the two hinge connecting rods are connected with the two horizontal pressing strips respectively, the two fork seats are arranged on the boss parts of the base plate and are in butt joint with the end parts of the first V-shaped block and the second V-shaped block, the inner parts of the two fork seats are connected with the two ball head hinges respectively, one end of each of the two ball head hinges is provided with a hinge bolt, and the two hinge bolts are clamped at the end parts of the two horizontal pressing strips and are limited by the fastening nuts.

[0007] In the positioning fixture structure for motor shaft machining, the bottom end of the second V-shaped block is provided with a heightening plate, the bottom end of the heightening plate is provided with a mounting seat, and the second V-shaped block is assembled with the boss part of the base plate through the heightening plate and the mounting seat.

[0008] In the positioning fixture structure for motor shaft machining, the bottom end of each of the two horizontal pressing strips is provided with a flexible contact seat.

[0009] In the positioning fixture structure for motor shaft machining, a positioning groove is formed in the middle part of one side of the fixture base plate.

[0010] In the positioning fixture structure for motor shaft machining, a stop rod is arranged at the bottom end of the adjusting column and is clamped with the track groove of the base plate.

[0011] Compared with the prior art, the positioning fixture structure for motor shaft machining has the following advantages: the first V-shaped block and the second V-shaped block are assembled on the top boss part of the base plate, the blocking plane corresponding to the first V-shaped block is arranged on the side of the shaft end blocking column, the shaft end blocking plate is arranged in the track groove, and the pressing assembly is arranged, so that the motor shaft can be clamped and positioned comprehensively, the motor shaft is clamped firmly, accurate positioning is realized, deviation is reduced, safe and efficient machining is ensured, the second V-shaped block is assembled with the boss part of the base plate through the heightening plate and the mounting seat, the height is convenient to adjust, the positioning fixture structure is suitable for transition type or circular table type motor shafts, and good position precision is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a schematic view of the three-dimensional structure of the positioning fixture structure for motor shaft machining.

[0013] Figure 2 is a schematic view of the structure of the shaft end blocking column of the positioning fixture structure for motor shaft machining.

[0014] Figure 3 is a schematic view of the structure of the second V-shaped block of the positioning fixture structure for motor shaft machining.

[0015] In the figure, 1, clamp base plate; 2, backing plate; 3, first V-shaped block; 4, hinge connecting rod; 5, horizontal pressing strip; 6, flexible contact seat; 7, fork seat; 8, ball head hinge; 9, hinge bolt; 10, fastening nut; 11, shaft end baffle; 12, adjusting column; 13, positioning groove; 14, shaft end blocking column; 15, second V-shaped block; 16, backing plate; 17, erecting seat; 18, stop rod; 19, blocking plane; 20, positioning pin column. DETAILED DESCRIPTION

[0016] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0017] As shown in Figure 1 , Figure 2 and Figure 3 , the utility model discloses a positioning fixture structure for motor shaft machining;

[0018] Embodiment: the positioning fixture includes clamp base plate 1, backing plate 2, first V-shaped block 3 and second V-shaped block 15, backing plate 2 is integrally arranged at the top of clamp base plate 1, the middle part of one side of clamp base plate 1 is provided with positioning groove 13, positioning groove 13 is to facilitate the connection equipment machine tool of clamp base plate 1, first V-shaped block 3 and second V-shaped block 15 are all assembled at the top boss portion of backing plate 2, one side of the top of backing plate 2 is embedded with the installation of positioning pin column 20, the top of positioning pin column 20 is installed with shaft end blocking column 14, the side of shaft end blocking column 14 is provided with the blocking plane 19 corresponding to first V-shaped block 3, the other side of the top of backing plate 2 is provided with track groove, the inside of track groove is installed with shaft end baffle 11, one end of shaft end baffle 11 is installed with adjusting column 12, the bottom end of adjusting column 12 is installed with stop rod 18, stop rod 18 is clamped with the track groove of backing plate 2.Such can limit the front end and tail end of motor shaft, reduce the end jump and deviation.

[0019] In the above embodiment, in order to better limit the up and down orientation of the motor shaft, a pressing assembly is further included: the pressing assembly includes two hinge connecting rods 4, two horizontal pressing strips 5, two fork seats 7 and two ball head hinges 8, the two hinge connecting rods 4 are correspondingly installed at the boss portion of the backing plate 2, the ball heads of the two hinge connecting rods 4 are respectively connected with the two horizontal pressing strips 5, the two fork seats 7 are installed at the boss portion of the backing plate 2 and are in butt joint with the end portions of the first V-shaped block 3 and the second V-shaped block 15, the interiors of the two fork seats 7 are respectively connected with the two ball head hinges 8, one end of each of the two ball head hinges 8 is installed with a hinge bolt 9, the two hinge bolts 9 are respectively clamped at the end portions of the two horizontal pressing strips 5 and are limited by the fastening nuts 10.

[0020] In order to reduce the influence of the horizontal pressing strip 5 on the surface of the motor shaft, the bottom end of each of the two horizontal pressing strips 5 is provided with a flexible contact seat 6.

[0021] Further, in order to better adapt to the transition type motor shaft, the bottom end of the second V-shaped block 15 is provided with a heightening plate 16, the bottom end of the heightening plate 16 is provided with a mounting seat 17, and the second V-shaped block 15 is assembled with the boss of the base plate 2 through the heightening plate 16 and the mounting seat 17.

[0022] In use, the motor shaft is placed in the V-shaped groove of the first V-shaped block 3 and the second V-shaped block 15, the height of the second V-shaped block 15 is adjusted in advance through the heightening plate 16 and the mounting seat 17, so that the center of the motor shaft is in a horizontal and non-inclined state, the motor shaft is pressed by the two horizontal pressing strips 5, the two hinge bolts 9 are respectively clamped at the end of the two horizontal pressing strips 5 and are limited by the fastening nuts 10, the shaft end baffle 11 is adjusted to abut against the end of the motor shaft, and the stop rod 18 is clamped and limited with the track groove of the base plate 2. The clamp can firmly clamp the motor shaft, so that the machining of the motor shaft is more accurate and the machining effect is better.

[0023] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art. The specific embodiments described in the specification are only illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A positioning fixture structure for machining a motor shaft, comprising a fixture base plate (1), a pad plate (2), a first V-block (3), and a second V-block (15), characterized in that, The pad (2) is integrally set on the top of the fixture base plate (1). The first V-block (3) and the second V-block (15) are both assembled on the top boss of the pad (2). A positioning pin (20) is embedded on one side of the top of the pad (2). A shaft end stop (14) is installed on the top of the positioning pin (20). A blocking plane (19) corresponding to the first V-block (3) is provided on the side of the shaft end stop (14). A track groove is opened on the other side of the top of the pad (2). A shaft end baffle (11) is installed inside the track groove. An adjusting column (12) is installed on one end of the shaft end baffle (11). It also includes a clamping assembly.

2. The positioning fixture structure for machining a motor shaft according to claim 1, characterized in that, The clamping assembly includes two hinge links (4), two horizontal pressure bars (5), two fork seats (7), and two ball joints (8). The two hinge links (4) are installed on the bosses of the pad (2). The ball joints of the two hinge links (4) are connected to the two horizontal pressure bars (5) respectively. The two fork seats (7) are installed on the bosses of the pad (2) and are connected to the ends of the first V-block (3) and the second V-block (15). The interiors of the two fork seats (7) are connected to the two ball joints (8) respectively. One end of each ball joint (8) is equipped with a hinge bolt (9). The two hinge bolts (9) are respectively locked at the ends of the two horizontal pressure bars (5) and limited by fastening nuts (10).

3. The positioning fixture structure for machining a motor shaft according to claim 1, characterized in that, The bottom end of the second V-shaped block (15) is provided with a pad plate (16), and the bottom end of the pad plate (16) is provided with a support base (17). The second V-shaped block (15) is assembled with the boss of the pad plate (2) through the pad plate (16), the support base (17).

4. The positioning fixture structure for machining a motor shaft according to claim 2, characterized in that, Flexible contact seats (6) are installed at the bottom ends of both horizontal pressure strips (5).

5. The positioning fixture structure for machining a motor shaft according to claim 1, characterized in that, A positioning groove (13) is provided in the middle of one side of the fixture base plate (1).

6. The positioning fixture structure for machining a motor shaft according to claim 1, characterized in that, The bottom end of the adjusting column (12) is equipped with a stop rod (18), which engages with the track groove of the pad (2).

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