CN219704225U - Mechanical part machining clamp - Google Patents

Abstract

The utility model discloses a mechanical part machining fixture, which relates to the technical field of fixture clamps for part machining and solves the technical problem that shaft parts with different sizes cannot be used in the same fixture; the utility model is used for machining mechanical shaft parts, and has the advantage that the shaft parts with different sizes can be machined by the same fixture.

Description

Mechanical part machining clamp

Technical Field

The utility model relates to the technical field of tool clamps for part machining, in particular to the technical field of mechanical part machining clamps.

Background

Shaft-type parts, in particular crankshafts, are used in a large number in various mechanical fields, for example in aerospace, automobiles, ships, textile machines, such as warp knitting machines. Because of the specificity of the parts, the areas except the two end surfaces need to be processed, the common practice needs to design a plurality of corresponding clamps according to a plurality of different areas, and the clamping is needed for a plurality of times, so that a great deal of time is consumed, and the precision of the parts is seriously affected.

The shape and the function of the crankshaft, the camshaft and the eccentric shaft are similar, when the parts are repaired or manufactured, a clamp is needed, the crankshaft, the camshaft or the eccentric shaft is clamped on a machine tool through the clamp along the axis, then the machine tool rotates along the axis, the machine tool is used for machining according to the required size, when the machine tool is used for machining, the requirements of different workpiece sizes on the height of the clamp are changed, when the clamp range is sometimes insufficient, the eccentric clamp needs to be replaced, a plurality of sets of clamps are needed for standby, the clamp is replaced and the installation is difficult, the axis of the clamp needs to be recalibrated when the clamp is installed each time, and the possibility of error generation is increased.

Disclosure of Invention

The utility model aims at: the utility model provides a mechanical part machining clamp, which aims to solve the problem that shaft parts with different sizes cannot be used in the same clamp.

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a mechanical part adds clamping apparatus, includes the support, the top of support has extrusion device, extrusion device's below butt joint is connected with the clamp splice, the below butt joint of going up the clamp splice has the clamp splice down, the clamp splice passes through the screw fixation in the inside below of support down, and the below threaded connection of support has the screw push rod, the screw push rod passes the below butt joint of support in the below of clamp splice.

Further, a through hole and a threaded hole are formed above the support, and an extrusion device is connected to the through hole and the threaded hole.

Further stated, the extrusion device is screwed with an extrusion push rod, the extrusion push rod passes through the threaded hole, and the extrusion device passes through the through hole and is limited on a limit step arranged above the bracket.

Further stated, the upper clamping block is provided with a column above, the outside of the column is sleeved with a spring, and the upper part of the spring is contacted with the extrusion push rod.

Further stated, the upper outer wall of the upper clamp block is in contact with the pressing device.

Further stated, a lug block is provided below the upper clamp block, and the lower part of the lug block is in abutting contact with the threaded push rod.

Further illustratively, the tab is in contact with an inner wall of the bracket.

The beneficial effects of the utility model are as follows:

1. the upper part of the bracket is provided with the extrusion device, the lower part of the extrusion device is in butt joint with the upper clamping block, the lower part of the upper clamping block is in butt joint with the lower clamping block, the lower clamping block is fixed below the inside of the bracket through a screw, the lower part of the bracket is in threaded connection with the threaded push rod, the threaded push rod passes through the lower part of the bracket and is in butt joint with the lower part of the upper clamping block, and through fixing the lower clamping block, shaft parts are placed between the upper clamping block and the lower clamping block, and the up-down movement of the extrusion device is controlled to clamp shaft parts with different sizes.

2. The upper part of the bracket is provided with a perforation and a threaded hole, the perforation and the threaded hole are connected with an extrusion device, the extrusion device is in threaded connection with an extrusion push rod, the extrusion push rod passes through the threaded hole to extrude the upper clamping block, the extrusion device passes through the perforation and is limited on a limiting step arranged above the bracket, and the limiting step limits the extrusion device to move downwards.

3. The upper clamping block is provided with the upright post above, the spring is sleeved outside the upright post to prevent the spring from radially deviating, the upper side of the spring is contacted with the extrusion push rod, the extrusion push rod does not directly extrude the upper clamping block spring to buffer the upper clamping block, and the extrusion push rod acts on the upper clamping block again through the force of the extrusion push rod on the spring to prevent the extrusion push rod from directly crushing parts by the force of the extrusion push rod on the upper clamping block.

4. The upper outer wall of the upper clamping block is contacted with the extrusion device, and the extrusion device can guide the movement of the upper clamping block when the upper part of the upper clamping block moves.

5. The lower part of the upper clamping block is provided with the lug block, the lower part of the lug block is in butt contact with the threaded push rod, and the threaded push rod is rotated to support the upper clamping block to move upwards or downwards.

6. The lug blocks are contacted with the inner wall of the bracket, and the inner wall of the bracket prevents the lug blocks from radial deflection.

Drawings

FIG. 1 is a schematic view of the assembled construction of the present utility model;

fig. 2 is a schematic view of the stent structure of the present utility model.

Reference numerals: 1-bracket, 2-extrusion device, 3-extrusion push rod, 4-spring, 5-upper clamp splice, 6-column, 7-lug block, 8-thread push rod, 9-screw, 10-lower clamp splice, 11-limit step, 12-perforation, 13-screw hole.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1 and 2, this embodiment provides a mechanical part machining fixture, including support 1, the top of support 1 has extrusion device 2, the butt joint of the below of extrusion device 2 is connected with clamp splice 5, the butt joint of the below of clamp splice 5 has lower clamp splice 10, lower clamp splice 10 passes through screw 9 to be fixed in the inside below of support 1, and the below threaded connection of support 1 has screw push rod 8, screw push rod 8 passes the below of support 1 and docks in the below of clamp splice 5.

The upper part of the bracket 1 is provided with a perforation 12 and a threaded hole 13, the perforation 12 and the threaded hole 13 are both connected with the extrusion device 2, the extrusion device 2 is in threaded connection with the extrusion push rod 3, the extrusion push rod 3 passes through the threaded hole 13, and the extrusion device 2 passes through the perforation 12 and is limited on a limit step 11 arranged above the bracket 1.

The upper clamping block 5 is provided with a stand column 6 above, a spring 4 is sleeved outside the stand column 6, the upper side of the spring 4 is in contact with the extrusion push rod 3, and the outer wall of the upper side of the upper clamping block 5 is in contact with the extrusion device 2. The lower part of the upper clamping block 5 is provided with a lug block 7, the lower part of the lug block 7 is in butt contact with the threaded push rod 8, and the lug block 7 is in contact with the inner wall of the bracket 1.

Example 2

The threaded push rod 8 is in threaded connection with the extrusion device 2, the extrusion device 2 is integrally connected with the threaded push rod 8, the extrusion device 2 penetrates through the through hole 12, the threaded push rod 8 penetrates through the threaded hole 13, the extrusion device 2 penetrates through the through hole 12 and is limited by the limiting step 11 arranged above the support 1, and the limiting step 11 limits the extrusion device 2 to move downwards.

The upright post 6 arranged above the upper clamping block 5 prevents the spring 4 from being radially deflected, the spring is in contact with the extrusion push rod 3, the extrusion push rod 3 does not directly extrude the upper clamping block 5, the spring 4 plays a role in buffering the acting force of the extrusion push rod 3 on the upper clamping block 5, the force of the extrusion push rod 3 on the spring 4 acts on the upper clamping block 5 again, the phenomenon that the part is crushed due to the fact that the extrusion push rod 3 directly applies force on the upper clamping block 5 is prevented, the spring 4 can be removed, and the extrusion push rod 3 directly applies appropriate force on the upper clamping block 5 and contacts the upper clamping block 5 to enable the upper clamping block 5 to compress the part but cannot compress the part.

When the upper clamping block 5 moves up and down, the upper outer wall of the upper clamping block 5 contacts with the extrusion device 2 to guide the upper and lower movement of the upper clamping block 5.

Example 3

The specific operation of the utility model is as follows:

the lower clamping block 10 is fixed below the inside of the bracket 1 through the screw 9, the shaft part is placed above the lower clamping block 10, the upper clamping block 5 is placed above the shaft part, the inner wall of the bracket 1 prevents radial deflection of the lug block 7, namely the upper clamping block 5, because the lug block 7 contacts with the inner wall of the bracket, the extrusion device 2 and the extrusion push rod 3 provided with the extrusion device pass through the through hole 12 and the threaded hole 13 respectively, the limiting step 11 limits the downward movement of the extrusion device 2, the spring 4 can be sleeved or the spring 4 cannot be sleeved above the upper clamping block 5, the extrusion push rod 3 is rotated positively to extrude the upper clamping block 5, the extrusion of the upper clamping block 5 can be released by the reverse extrusion push rod 3, and the upward movement of the upper clamping block 5 is facilitated by the reverse extrusion push rod 3 which can be separated from the extrusion device 2 when the extrusion device 2 is still arranged above the bracket 1.

The lower part of the lug block is in butt contact with the threaded push rod 8, the threaded push rod 8 is rotated forward to support and push the upper clamping block 5 to move upwards, the threaded push rod 8 is rotated backward to move downwards, the upper clamping block 5 is supported by the threaded push rod 8 to move downwards, and the upper clamping block 5 is supported by the shaft part or the lower clamping block 10 and then the threaded push rod 8 is separated from the upper clamping block 5.

The upper clamping block 5 is moved upwards by rotating the threaded push rod 8 forwards, the upper clamping block 5 is moved downwards by rotating the threaded push rod 8 reversely, the shaft parts with different sizes are clamped by adjusting the height of the upper clamping block 5, after the threaded push rod 8 is separated from the upper clamping block 5, the upper clamping block 5 is pressed on the shaft parts by means of the gravity of the threaded push rod 8, the upper clamping block 5 is extruded by the extruding push rod 3 forwards, and the shaft parts are compressed by the upper clamping block 5 and the lower clamping block 10. Therefore, according to the height of the upper clamping block 5, shaft parts with different sizes can be processed on the same clamp.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (7)

1. A machine part machining jig comprising a bracket (1), characterized in that: the top of support (1) has extrusion device (2), the below butt joint of extrusion device (2) is connected with clamp splice (5), the below butt joint of clamp splice (5) has clamp splice (10) down, clamp splice (10) are fixed in the inside below of support (1) through screw (9), and the below threaded connection of support (1) has screw push rod (8), screw push rod (8) pass the below butt joint of support (1) in the below of clamp splice (5).

2. A machine part machining jig according to claim 1, wherein: the upper part of the bracket (1) is provided with a perforation (12) and a threaded hole (13), and the perforation (12) and the threaded hole (13) are connected with an extrusion device (2).

3. A machine part machining jig according to claim 2, wherein: the extrusion device (2) is in threaded connection with an extrusion push rod (3), the extrusion push rod (3) penetrates through the threaded hole (13), and the extrusion device (2) penetrates through the through hole (12) and is limited on a limiting step (11) arranged above the support (1).

4. A machine part machining jig according to claim 1, wherein: the upper clamping block (5) is provided with a stand column (6), a spring (4) is sleeved outside the stand column (6), and the upper part of the spring (4) is in contact with the extrusion push rod (3).

5. A machine part machining jig according to claim 4, wherein: the upper outer wall of the upper clamping block (5) is contacted with the extrusion device (2).

6. A machine part machining jig according to claim 1, wherein: the lower part of the upper clamping block (5) is provided with a lug block (7), and the lower part of the lug block (7) is in butt contact with the threaded push rod (8).

7. A machine part machining jig according to claim 6, wherein: the lug blocks (7) are in contact with the inner wall of the bracket (1).