Motor shell part blank positioning clamp

Abstract

The utility model discloses a motor shell part blank positioning clamp, which solves the problem that a corresponding structure capable of performing rough machining positioning and pressing on a motor shell part blank structure in the existing positioning mode does not exist, and comprises a foundation base, a left side wall, a right side wall, a first V-shaped block, a second V-shaped block and an auxiliary supporting base are connected to the foundation base, the upper end of the right side wall is connected with one end of a pressing arm through a first hinge, the other end of the pressing arm is connected with the upper end of the left side wall through a first plug pin, the pressing arm is connected with a plurality of pressing screws extending towards the interior of the clamping structure, and an adjusting support is connected to the auxiliary supporting base. A bulge is arranged on the first V-shaped block; a first V-shaped block, a second V-shaped block and a protrusion are used for providing blocking points, a pressing screw rod is used for providing pressing points for positioning and pressing, and in other words, the part is pressed in a multi-point mode with small pressing force.

Description

Technical Field

[0001] The utility model relates to a positioning fixture, in particular to a positioning fixture for a blank of a motor housing part. Background Art

[0002] Housing blanks are typically positioned using a two-pin system on one side, with support points located below the pressing points to prevent excessive pressure from causing workpiece deformation. However, motor housing blanks have a unique structure, and existing positioning methods lack a suitable structure for rough machining, positioning, and pressing. Using direct clamping and pressing methods for housing blanks can easily lead to deformation due to excessive pressure, or unsatisfactory positioning and pressing results due to insufficient pressure.

[0003] For example, Chinese patent CN217993066U discloses a two-side flip cutting and positioning fixture for optical blank parts, comprising a processing table, a flip box, which is fixed to the top of the processing table by welding, a limiting cylinder is provided on the top of the flip box, which is fixedly embedded in the top of the flip box by welding, a groove is provided at the bottom of the limiting cylinder, a flip cylinder is provided inside the limiting cylinder, bearing sleeves are provided at both ends of the flip cylinder, the flip cylinder is movably connected to the limiting cylinder through the provided bearing sleeves, a gear sleeve is provided on the outer periphery of the flip cylinder, and the gear sleeve is fixed to the outer periphery of the flip cylinder by welding, a transmission gear is provided on one side of the interior of the flip box, the transmission gear is meshed with the gear sleeve, a flip motor is provided at one end of the transmission gear, and the output shaft end of the flip motor is fixedly connected to the transmission gear, clamps are provided on both sides of the interior of the flip cylinder, and the clamps are fixed to the inner wall of the flip cylinder by welding through connecting blocks. The positioning fixture fixes the optical blank parts by direct clamping to achieve the effect of flip cutting, but there is still the problem of no corresponding structure to perform rough processing, positioning and pressing of the motor housing parts blank; in addition, if the positioning fixture is used to press the motor housing parts blank, deformation may occur due to excessive clamping force, or the positioning and pressing effects may not be achieved due to insufficient clamping force. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing positioning method cannot perform rough machining positioning and press the corresponding structure of the motor housing part blank structure, and to provide a motor housing part blank positioning fixture.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A motor housing part blank positioning fixture includes a plate-shaped base, and its special features are:

[0007] The basic base is connected to a left side wall, a right side wall, a first V-shaped block, a second V-shaped block, and an auxiliary support base;

[0008] The left side wall and the right side wall are arranged opposite to each other, the first V-shaped block, the second V-shaped block and the auxiliary support base are located between the left side wall and the right side wall, the first V-shaped block and the second V-shaped block are arranged adjacent to each other, and the auxiliary support base is arranged close to the second V-shaped block;

[0009] The V-shaped openings of the first V-shaped block and the second V-shaped block are arranged upward, and the axes of the inscribed circles thereof are on the same straight line and parallel to the base;

[0010] The upper end of the right side wall is connected to one end of a pressure arm through a first hinge, and the other end of the pressure arm is connected to the upper end of the left side wall through a first latch. The pressure arm forms a clamping structure with the first V-shaped block and the second V-shaped block. After the first latch is pulled out, the other end of the pressure arm can rotate around the first hinge to open the clamping structure, making it easier to place the motor housing part blank on the first V-shaped block and the second V-shaped block.

[0011] The pressing arm is connected to a plurality of compression screws extending into the interior of the clamping structure, and the compression screws are screwed into the interior of the clamping structure to compress the motor housing part blank;

[0012] The auxiliary support base is connected to an adjustment support, which is located directly below the straight line and can support the corresponding position of the motor housing part blank.

[0013] Furthermore, a side block base is connected to the base base near the position of the second V-block, and the upper part of the side block base is connected to the L-shaped side block through a second hinge. One end is rotatably connected to the side block base through the side block base, and the other end is rotated to be close to the surface of the motor housing part blank, so as to limit the circumferential rotation freedom of the motor housing part blank.

[0014] Furthermore, it also includes a second pin inserted into and connected to the side guard and the side guard base. When the position of the side guard is determined, the pin is inserted into the side guard and the side guard base to fix the side guard.

[0015] Furthermore, a protrusion is connected to the first V-shaped block at a position away from the second V-shaped block, which is used to limit the freedom of the motor housing part blank along the axial direction.

[0016] Furthermore, there are eight pressing screws, four of which face the first V-shaped block, and the other four face the second V-shaped block.

[0017] Furthermore, at least two auxiliary supports extending toward the inside of the clamping structure are connected to the left and right walls, which can be close to the surface of the motor housing part blank, supporting the motor housing part blank and preventing radial translation.

[0018] Furthermore, each of the auxiliary supports includes a threaded sleeve passing through and fixed on the left wall or the right wall, a threaded rod installed in the threaded sleeve and extending into the interior of the clamping structure, and the threaded rod is adjusted to extend close to the motor housing part blank.

[0019] Furthermore, the first V-shaped block, the second V-shaped block and the basic base are connected through the body positioning key, which facilitates the centering adjustment of the first V-shaped block and the second V-shaped block so that the axis center of the inscribed circle of the first V-shaped block and the axis center of the inscribed circle of the second V-shaped block are on the same straight line.

[0020] Furthermore, two positioning keys are connected to the bottom of the basic base for connection with the machine tool workbench.

[0021] Furthermore, a lifting eye screw is fixedly connected to the basic base for lifting the clamp.

[0022] Beneficial effects of the utility model:

[0023] 1. In the motor housing part blank positioning fixture of the utility model, the motor housing part blank is supported by the first V-shaped block and the second V-shaped block, the bottom of the motor housing part blank is supported upward by an adjustable support, and the motor housing part blank is pressed by multiple pressing screws, thereby achieving the effect of multi-point and small pressing force pressing the motor housing part blank;

[0024] 2. In the positioning fixture for a motor housing part blank of the present invention, an L-shaped side stop is used to abut against the motor housing part blank, thereby limiting the circumferential rotational freedom of the motor housing part blank;

[0025] 3. In the positioning fixture for a motor housing part blank of the present invention, a protrusion is provided on the first V-shaped block, which can limit the degree of freedom of the motor housing part blank along the axial direction;

[0026] 4. In the positioning fixture for a motor housing part blank of the utility model, an auxiliary support extending into the interior of the clamping structure is provided. By adjusting the internal extension length, the auxiliary support is closely attached to the surface of the motor housing part blank, thereby supporting the motor housing part blank and preventing the motor housing part blank from radial translation.

[0027] 5. In the motor housing part blank positioning fixture of the utility model, the first V-shaped block, the second V-shaped block and the basic base are connected by the main body positioning key, which facilitates the centering adjustment of the first V-shaped block and the second V-shaped block so that the axis center of the inscribed circle of the first V-shaped block and the axis center of the inscribed circle of the second V-shaped block are on the same straight line. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1This is a front view of an embodiment of a positioning fixture for a blank of a motor housing part of the utility model;

[0029] Figure 2 It is a top view of an embodiment of a positioning fixture for a motor housing part blank according to the present utility model.

[0030] In the figure, 1-basic base, 2-left side wall, 3-right side wall, 4-auxiliary support, 5-pressure arm, 6-first pin, 7-first hinge, 8-tensioning screw, 9-first V-block, 10-second V-block, 11-side stop base, 12-side stop, 13-second pin, 14-second hinge, 15-machine tool positioning key, 16-adjustment support, 17-auxiliary support base, 18-main body positioning key, 19-lifting eye screw. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings and embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] The present invention provides a motor housing part blank positioning fixture, such as Figure 1 and Figure 2 As shown, the plate-shaped basic base 1 is connected to the relatively arranged left side wall 2 and right side wall 3, and the adjacent first V-shaped block 9 and second V-shaped block 10 are connected between the left side wall 2 and the right side wall 3 on the basic base 1 through the body positioning key 18, and the V-shaped mouth is set upward. The body positioning key 18 is used to facilitate the centering adjustment of the first V-shaped block 9 and the second V-shaped block 10, so that the axis center of the inscribed circle of the first V-shaped block 9 and the axis center of the inscribed circle of the second V-shaped block 10 are on the same straight line, and the straight line is parallel to the basic base 1. When the motor housing part blank is pressed, the central axis of the motor housing part blank can be ensured to be in a horizontal state.

[0033] A protrusion is connected to the first V-block 9 at a position away from the second V-block 10 , and the protrusion is used to limit the degree of freedom of the motor housing part blank in the axial direction.

[0034] The basic base 1 is connected to an auxiliary support base 17 near the second V-shaped block 10, and the auxiliary support base 17 is connected to an adjustment support 16, which is located directly below the straight line; the adjustment support 16 supports the corresponding position of the motor housing part blank.

[0035] The upper end of the right side wall 3 is connected to one end of the pressure arm 5 through the first hinge 7, and the other end of the pressure arm 5 is connected to the upper end of the left side wall 2 through the first pin 6. The pressure arm 5 forms a clamping structure with the first V-block 9 and the second V-block 10. After removing the first pin 6, the pressure arm 5 can rotate around the first hinge 7, which is convenient for placing or removing the motor housing part blank. The first pin 6 is installed to lock the other end of the pressure arm 5.

[0036] The pressure arm 5 is connected to eight clamping screws 8 extending into the interior of the clamping structure, among which four clamping screws 8 are facing the first V-block 9, and the other four clamping screws 8 are facing the second V-block 10. The length of the clamping screws 8 extending into the interior can be adjusted according to actual conditions so as to adapt to the special structure of the motor housing blank.

[0037] A side block base 11 is connected to the base base 1 near the second V-block 10. The upper part of the side block base 11 is connected to the L-shaped side block 12 through a second hinge 14. The second pin 13 is connected to the side block 12 and the side block base 11 as needed; the side block 12 is used to limit the freedom of circumferential rotation of the motor housing part blank.

[0038] Two auxiliary supports 4 extending into the interior of the clamping structure are connected to both the left and right walls 2 and 3. Each auxiliary support 4 comprises a threaded sleeve extending through the left or right wall 2 or 3, within which a threaded rod extending into the interior of the clamping structure is connected. By adjusting the inward extension of the threaded rod, the threaded rod abuts against the surface of the motor housing blank, providing support for the blank and preventing radial translation of the blank.

[0039] Two machine tool positioning keys 15 are connected to the bottom of the basic base 1 for connecting to the machine tool workbench.

[0040] The basic base 1 is fixedly connected with a lifting eye screw 19 for lifting the fixture.

[0041] The method for using the positioning fixture for a motor housing part blank in this embodiment is as follows:

[0042] S1. Installing a positioning fixture for a motor housing part blank according to the embodiment on a machine tool workbench using two machine tool positioning keys 15;

[0043] S2. Remove the first latch 6, rotate the pressure arm 5 to the right, remove the second latch 13, rotate the side block 12 to the right, place the motor housing blank on the first V-block 9 and the second V-block 10, close to the protrusion on the first V-block 9, rotate the side block 12 to the left until it is close to the surface of the motor housing blank, and insert the second latch 13;

[0044] S3. Rotate the pressing arm 5 to the left, insert the first pin 6, adjust the pressing screw 8 to press the surface of the motor housing part blank; twist the threaded rod in the auxiliary support 4, close to the surface of the motor housing part blank, and further increase the number of "multi-point" midpoints.

[0045] S4. Adjust the height of the support 16 to support the corresponding position of the motor housing part blank, thereby completing the positioning and pressing of the motor housing part blank.

[0046] This embodiment is a positioning fixture for a motor housing part blank. In combination with the characteristics of the motor housing part blank, a positioning method is designed to use the first V-block 9, the second V-block 10 and the protrusion to provide a stop point, and the clamping screw 8 to provide a pressure point for positioning and clamping, that is, a multi-point, small clamping force is used to clamp the part.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention shall be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A positioning fixture for a blank of a motor housing part, comprising a plate-shaped base (1), characterized in that: The basic base (1) is connected to a left side wall (2), a right side wall (3), a first V-shaped block (9), a second V-shaped block (10), and an auxiliary support base (17); The left side wall (2) and the right side wall (3) are arranged opposite to each other, the first V-shaped block (9), the second V-shaped block (10), and the auxiliary support base (17) are located between the left side wall (2) and the right side wall (3), the first V-shaped block (9) and the second V-shaped block (10) are arranged adjacent to each other, and the auxiliary support base (17) is arranged close to the second V-shaped block (10); The V-shaped openings of the first V-shaped block (9) and the second V-shaped block (10) are arranged upward, and the axes of their inscribed circles are on the same straight line and parallel to the base (1); The upper end of the right side wall (3) is connected to one end of a pressure arm (5) via a first hinge (7), and the other end of the pressure arm (5) is connected to the upper end of the left side wall (2) via a first latch (6), and the pressure arm (5) forms a clamping structure with the first V-shaped block (9) and the second V-shaped block (10); The pressing arm (5) is connected to a plurality of pressing screws (8) extending toward the interior of the clamping structure; The auxiliary support base (17) is connected to the adjustment support (16), and the adjustment support (16) is located directly below the straight line.

2. The motor housing part blank positioning fixture according to claim 1, characterized in that: A side block base (11) is connected to the base base (1) at a position close to the second V-shaped block (10), and the upper portion of the side block base (11) is connected to an L-shaped side block (12) via a second hinge (14) for limiting the circumferential rotational freedom of the motor housing part blank.

3. The motor housing part blank positioning fixture according to claim 2, characterized in that: It also includes a second latch (13) inserted and connected to the side guard (12) and the side guard base (11).

4. The motor housing part blank positioning fixture according to claim 1, characterized in that: A protrusion is connected to the first V-shaped block (9) at a position away from the second V-shaped block (10) and is used to limit the degree of freedom of the motor housing part blank along the axial direction.

5. The motor housing part blank positioning fixture according to claim 1, characterized in that: There are eight pressing screws (8), four of which are facing the first V-shaped block (9), and the other four are facing the second V-shaped block (10).

6. The motor housing part blank positioning fixture according to claim 1, characterized in that: At least two auxiliary supports (4) extending toward the interior of the clamping structure are connected to both the left side wall (2) and the right side wall (3).

7. The motor housing part blank positioning fixture according to claim 6, characterized in that: Each auxiliary support (4) comprises a threaded sleeve passing through and fixed on the left side wall (2) or the right side wall (3), and a threaded rod installed in the threaded sleeve and extending toward the inside of the clamping structure.

8. The motor housing part blank positioning fixture according to claim 1, characterized in that: The first V-shaped block (9), the second V-shaped block (10) and the base base (1) are connected via a body positioning key (18).

9. The motor housing part blank positioning fixture according to claim 1, characterized in that: Two machine tool positioning keys (15) are connected to the bottom of the basic base (1) for connection with the machine tool workbench.

10. The motor housing part blank positioning fixture according to claim 1, characterized in that: A lifting eye screw (19) is fixedly connected to the basic base (1) and is used for lifting the clamp.

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