CN118720793A - A machine tool parts processing fixture - Google Patents

Abstract

The present invention discloses a machine tool accessory processing fixture, which relates to the technical field of machine tool accessory processing, and comprises a base and a quick disassembly assembly component, wherein the right outer wall of the base is fixedly connected with an inverted L-shaped plate, the outer wall of the slide is symmetrically slidably connected with the quick disassembly assembly component, the outer wall of the slide is symmetrically slidably connected with two end limit assemblies, the outer walls of the two end limit assemblies that are close to each other are both provided with anti-skid fastening assemblies, the outer wall of the anti-skid fastening assembly is connected with an inner support assembly, and the outer wall of the inner support assembly is fixed with an inner support mother rod. The present invention wraps and limits the shaft accessories to be processed from four directions through four clamping plates, and two groups of quick disassembly assemblies ensure the horizontality of the shaft accessories to be processed before processing, and the flexible positioning key is quickly separated from the positioning block, and the quick disassembly assembly is slidably matched with the quick disassembly assembly on the outer wall of the slide, so as to realize the functions of quickly disassembling and replacing the shaft accessories and quickly adjusting the clamping area of the quick disassembly assembly, thereby improving the processing efficiency.

Description

A machine tool parts processing fixture

Technical Field

The invention relates to the technical field of machine tool accessory processing, in particular to a machine tool accessory processing fixture.

Background Art

Machine tool accessories are various auxiliary components necessary for the normal operation of machine tools and the processing of parts. Among them, solid shafts and hollow shafts are two common machine tool shaft accessories. A solid shaft refers to a shaft without an internal cavity, and a hollow shaft refers to a shaft with an internal cavity. The usual processing steps for solid shafts and hollow shafts are: drilling, grinding, lapping and surface treatment, etc. During the processing, fixtures are usually required for support, positioning and clamping.

At present, in the process of processing solid shaft accessories of machine tools, clamps are usually used for external centering clamping or clamping at both ends to ensure the horizontality of shaft accessories during processing and prevent position offset and shaking during processing. However, the clamping area of the outer wall of the workpiece by the clamp is not convenient for processing, and there is a processing dead angle. In order to ensure the stability of clamping, the clamp is usually not convenient for quick disassembly and assembly, resulting in low adjustment efficiency when the clamping position of the workpiece needs to be changed for processing; secondly, in the process of processing hollow shaft accessories of machine tools, positioning blocks, support pins and the like are usually used to support the inside of the hollow shaft to avoid deformation during processing. However, this method has certain limitations and is not convenient for adjustment according to the inner wall of the workpiece. It only relies on a single positioning block, support pins and the like for support, and the support and clamping effects are not ideal, which in turn affects the processing effect.

Therefore, in order to ensure the stability of clamping and improve processing efficiency, the present invention provides a machine tool accessory processing fixture.

Summary of the invention

The purpose of the present invention is to solve the problems existing in the prior art and to propose a machine tool accessory processing fixture.

In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a machine tool accessory processing fixture, including a base and a quick-disassembly assembly component, the right outer wall of the base is fixedly connected with an inverted L-shaped plate, and the upper end of the base is laterally equidistantly provided with slide grooves, the middle slide groove is symmetrically and slidably connected with a quick-disassembly assembly component, and the remaining slide grooves are symmetrically and slidably connected with two end limit assemblies, the quick-disassembly assembly component includes a first slide seat, and the middle slide groove is slidably connected with a first slide seat, the top of the first slide seat is fixedly connected with a lower support seat, and the top of the lower support seat is symmetrically provided with two first slide rails, the interiors of the two first slide rails are slidably connected with slide plates, and the tops of the two slide plates are symmetrically connected with each other An upper support seat is fixedly connected thereto, and a handle is fixedly connected to the top of the upper support seat, and two flexible positioning keys are fixedly connected to the bottom of the slide plate symmetrically on the left and right, the two flexible positioning keys are connected by a first return spring, and the outer walls of the flexible positioning keys are snap-connected with positioning blocks, the positioning blocks are fixedly connected to the top of the base, and a number of positioning blocks are equidistantly arranged from left to right; the outer walls of the two end limit assemblies that are close to each other are both provided with anti-slip fastening assemblies, and the outer walls of the anti-slip fastening assemblies are connected with inner support assemblies, the outer wall of the inner support assembly on the left side is fixed with an inner support mother rod, and the outer wall of the right end of the inner support mother rod is snap-connected with an inner support sub-rod, and the inner support sub-rod is installed on the outer wall of the inner support assembly on the right side.

In the above-mentioned machine tool parts processing fixture, V-shaped grooves are provided on the top of the lower support seat and the bottom of the upper support seat, and two clamping plates are symmetrically slidably connected in the front and rear directions in the V-shaped grooves, and the clamping plates are composed of arc segments and column segments, and a second return spring mounted on the column segment of the clamping plate is connected between the lower support seat and the upper support seat and the corresponding arc segments of the clamping plates.

In the above-mentioned machine tool accessory processing fixture, the bottom height of the upper support seat is higher than the top height of the lower support seat, and the bottom height of the lower support seat is higher than the top height of the positioning block.

In the above-mentioned machine tool accessory processing fixture, the end limit assembly includes a driving motor, and the side wall of the inverted L-shaped plate is fixedly connected to the driving motor, the output end of the driving motor is connected to the first gear, and the outer wall of the first gear is meshed with a transmission belt, the other side of the inner wall of the transmission belt is meshed with a second gear, and the first gear and the second gear are rotatably connected to the right side wall of the base, the left side wall of the first gear is fixed with a first screw rod, the left side wall of the second gear is fixed with a second screw rod, and the left ends of the first screw rod and the second screw rod are both rotatably connected to the left side wall of the base, the first screw rod and the second screw rod are both arranged inside the base, and the outer walls of the first screw rod and the second screw rod are commonly threadedly connected with two left-right symmetrical inverted U-shaped frames, the first screw rod and the second screw rod are both bidirectional screw rods, the inverted U-shaped frame is slidably connected to the outer wall of the slide groove, and the tops of the two inverted U-shaped frames are fixed with limiting plates.

In the above-mentioned machine tool accessory processing fixture, the anti-slip fastening assembly includes an annular frame, and the side wall of the limit plate is fixed with an annular frame, the inside of the annular frame is rotatably connected with an internal gear, and the outer wall of the internal gear is fixed with a control rod, the control rod slides through the outer wall of the annular frame, and the outer wall of the control rod is sleeved with a traction block, the outer wall of the traction block is rotatably connected with an electric push rod, and the electric push rod is fixed to the side wall of the limit plate.

In the above-mentioned machine tool accessory processing fixture, the side wall of the internal gear is evenly fixed with a first wedge block along the circumferential direction, the side wall of the annular frame is evenly opened with through holes along the circumferential direction, and the second wedge block is slidably connected in the through hole, the second wedge block is composed of a wedge block segment and a columnar segment, and the outer wall of the first wedge block is tightly attached to the outer wall of the wedge block segment of the second wedge block, and the outer wall of the columnar segment of the second wedge block is fixed with a fastening plate.

In the above-mentioned machine tool accessory processing fixture, the internal support assembly includes a third gear, and the inner wall of the internal gear is meshedly connected with the third gear, the inner wall of the third gear is fixed with a roller, and the outer wall of the roller is symmetrically connected with a third return spring, the ends of the third return spring are fixedly connected to the same rotating block, and the roller is in rolling contact with the outer wall of the rotating block, the centers of the third gear and the rotating block are consistent, and the side of the rotating block away from the fastening plate is rotatably connected with a pushing end, and the side of the rotating block close to the fastening plate is fixed with a connecting block.

In the above-mentioned machine tool accessory processing fixture, a limiting ring is fixed on the side of the connecting block away from the rotating block, and a second slide rail is evenly opened inside the limiting ring along the circumferential direction, the inside of the second slide rail is slidably connected with a slide column, and an inner support member is fixed at one end of the slide column away from the connecting block, and the second slide rail, the slide column and the inner support member are each provided with six, and the second slide rail is an arc-shaped structure, the inner support member is composed of a small rectangular section, a large rectangular section that is sleeved on the outside of the small rectangular section and connected by a spring, and an arc-shaped section connected to the large rectangular section, and a rubber layer is provided on the surface of the arc-shaped section, the limiting ring is rotatably connected with an inner support seat on the side away from the connecting block, and the small rectangular section and the large rectangular section of the inner support member are both slidably connected to the inside of the inner support seat.

In the above-mentioned machine tool accessory processing fixture, the ends of the inner support mother rod and the inner support sub-rod are matched with each other in a concave-convex manner, and the inner support mother rod and the inner support sub-rod are arranged above the base.

Compared with the existing technology, the advantages of the present invention are: 1. The four clamping plates of the quick disassembly and assembly components are used to wrap and limit the shaft accessories to be processed from four directions. The two groups of quick disassembly and assembly components ensure the horizontality of the shaft accessories to be processed before processing, reduce the factors affecting the processing accuracy, and perform preliminary positioning of the shaft accessories to be processed to prevent the shaft accessories to be processed from positional displacement and shaking during the processing; at the same time, when it is necessary to rotate and change the angle of the shaft accessories for processing, or to process the area covered by the clamping plate, the flexible positioning key and the positioning block are quickly separated, and the sliding cooperation with the quick disassembly and assembly components on the outer wall of the slide groove is realized, so that the functions of quickly disassembling and replacing shaft accessories and quickly adjusting the clamping area of the quick disassembly and assembly components are realized, thereby improving the processing efficiency.

2. Through the coordination of the end limit assembly and the anti-slip fastening assembly, the driving motor drives the two inverted U-shaped frames to drive the limit plate close to the end of the shaft accessory, so that the fastening plate is close to the end of the shaft accessory, and then the fastening plate is driven by the operating lever to continue to move toward the end direction of the shaft accessory. The outer wall of the fastening plate increases the friction with the end of the shaft accessory through the anti-slip plate, thereby realizing the function of further limiting and fastening the two ends of the shaft accessory from the left and right directions, thereby improving the clamping effect.

3. When the processing object is a hollow shaft accessory, the anti-slip fastening component and the inner support component are matched to push the inner support component into the annular frame, and the operation lever is driven. The six inner support members are moved from the center to the periphery in a fanning manner until they are close to the inner wall of the hollow shaft accessory, so as to provide internal support for the two ends of the hollow shaft accessory from the inside to the outside. The inner support clamping can ensure that the hollow shaft accessory will not be deformed or moved during operation, thereby improving the processing accuracy and efficiency, and avoiding obstruction of the end processing area; at the same time, the inner support component drives the ends of the inner support mother rod and the inner support sub-rod to engage and connect, which further supports the interior of the hollow shaft accessory and prevents bending during processing.

BRIEF DESCRIPTION OF THE DRAWINGS

The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein: FIG1 is a schematic diagram of the overall structure of a machine tool accessory processing fixture proposed by the present invention.

FIG. 2 is a schematic cross-sectional view of a base of a fixture for machining machine tool parts according to the present invention.

FIG. 3 is a schematic structural diagram of a quick disassembly and assembly assembly of a machine tool accessory processing fixture proposed by the present invention.

FIG. 4 is a schematic diagram of the exploded structure of a quick disassembly and assembly assembly of a machine tool accessory processing fixture proposed by the present invention.

FIG. 5 is a schematic structural diagram of an inner support mother rod and an inner support sub-rod of a machine tool accessory processing fixture proposed by the present invention.

FIG. 6 is a schematic structural diagram of an end stop assembly of a machine tool accessory processing fixture proposed by the present invention.

FIG. 7 is a schematic structural diagram of an anti-slip fastening assembly of a machine tool accessory processing fixture proposed by the present invention.

FIG. 8 is a schematic structural diagram of an inner support member of a machine tool accessory processing fixture proposed by the present invention.

FIG. 9 is a schematic diagram of the exploded structure of an inner support assembly of a machine tool accessory processing fixture proposed by the present invention.

FIG. 10 is a schematic diagram of the left-side planar structure of an inner support seat of a machine tool accessory processing fixture proposed by the present invention.

In the figure: 1, base; 2, inverted L-shaped plate; 3, slide; 4, quick disassembly assembly; 41, first slide seat; 42, lower support seat; 43, first slide rail; 44, slide plate; 45, upper support seat; 46, handle; 47, flexible positioning key; 48, first return spring; 49, positioning block; 410, clamping plate; 411, second return spring; 5, end limit assembly; 51, drive motor; 52, first gear; 53, transmission belt; 54, second gear; 55, first screw rod; 56, second screw rod; 57, inverted U-shaped frame; 58, Limit plate; 6, anti-skid fastening assembly; 61, annular frame; 62, internal gear; 63, control lever; 64, traction block; 65, electric push rod; 66, first wedge block; 67, through hole; 68, second wedge block; 69, fastening sheet; 7, inner support assembly; 71, third gear; 72, roller; 73, third return spring; 74, rotating block; 75, pushing end; 76, connecting block; 77, limit ring; 78, second slide rail; 79, slide column; 710, inner support member; 711, inner support seat; 8, inner support mother rod; 9, inner support sub-rod.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

Referring to Figures 1 and 5, a machine tool accessory processing fixture includes a base 1 and a quick disassembly and assembly component 4, the right outer wall of the base 1 is fixedly connected with an inverted L-shaped plate 2, the upper end of the base 1 is laterally equidistantly provided with slide grooves 3, the middle slide groove 3 is symmetrically and slidably connected with the quick disassembly and assembly component 4, the remaining slide grooves 3 are commonly slidably connected with two left-right symmetrical end limit components 5, the outer walls of the two end limit components 5 on the adjacent sides are both provided with anti-slip fastening components 6, the outer walls of the anti-slip fastening components 6 are connected with inner support components 7, the outer wall of the left inner support component 7 is fixed with an inner support mother rod 8, the right end outer wall of the inner support mother rod 8 is snap-connected with an inner support sub-rod 9, and the inner support sub-rod 9 is installed on the outer wall of the right inner support component 7.

First, the base 1 and the inverted L-shaped plate 2 jointly provide support for the quick disassembly assembly 4 and the end limit assembly 5, the end limit assembly 5 provides support for the anti-slip fastening assembly 6 and the inner support assembly 7, and the inner support assembly 7 provides support for the inner support mother rod 8 and the inner support sub-rod 9. When in use, the shaft accessories to be processed are placed on the two groups of quick disassembly assembly assemblies 4. The two groups of quick disassembly assembly assemblies 4 place the shaft accessories to be processed stably in the processing position, and limit the shaft accessories to be processed to prevent the shaft accessories to be processed from position displacement and shaking during the processing. The end limit assembly 5 moves to drive the anti-slip fastening assembly 6 to move close to the shaft accessories. At the end, the anti-slip fastening component 6 can further limit and fasten the two ends of the shaft accessories from the left and right directions respectively. When the processing object is a hollow shaft accessory, the inner support component 7 is pushed from the two ends of the hollow shaft accessory to the center position. The inner support component 7 performs internal support on the two ends of the hollow shaft accessory from the inside to the outside. The internal support clamping can ensure that the hollow shaft accessory will not be deformed or moved during operation. At the same time, the inner support component 7 drives the inner support mother rod 8 and the inner support sub-rod 9 to move. The docked inner support mother rod 8 and the inner support sub-rod 9 play a supporting role inside the hollow shaft accessory to avoid deformation and bending during the processing.

1 to 4, the quick disassembly assembly 4 includes a first slide seat 41, the first slide seat 41 is slidably connected in the middle slide groove 3, the top of the first slide seat 41 is fixedly connected to a lower support seat 42, the top of the lower support seat 42 is symmetrically provided with two first slide rails 43, the insides of the two first slide rails 43 are slidably connected to a slide plate 44, the tops of the two slide plates 44 are commonly fixedly connected to an upper support seat 45, the tops of the upper support seat 45 are fixedly connected to a handle 46, the bottom of the slide plate 44 is symmetrically fixedly connected to two flexible positioning keys 47, the two flexible positioning keys 47 are connected by a first return spring 48, and the outer wall of the flexible positioning key 47 is A positioning block 49 is snap-fitted and connected, and the positioning block 49 is fixedly connected to the top of the base 1. There are several positioning blocks 49 arranged equidistantly from left to right; a V-shaped groove is provided on the top of the lower support seat 42 and the bottom of the upper support seat 45, and two clamping plates 410 are symmetrically slidably connected in the V-shaped groove. The clamping plate 410 is composed of an arc segment and a column segment. A second return spring 411 is connected between the lower support seat 42 and the upper support seat 45 and the corresponding arc segment of the clamping plate 410. The bottom height of the upper support seat 45 is higher than the top height of the lower support seat 42, and the bottom height of the lower support seat 42 is higher than the top height of the positioning block 49.

The shaft accessory to be processed is placed on the clamping plate 410 on the top of the lower support seat 42, and the handle 46 is held and pressed downward to move the upper support seat 45 downward to approach the lower support seat 42. The slide plate 44 slides downward inside the first slide rail 43 until the clamping plate 410 at the bottom of the upper support seat 45 is close to the outer wall of the shaft accessory to be processed, and the flexible positioning key 47 enters the positioning block 49. The first return spring 48 is compressed and then rebounds, and the flexible positioning key 47 is engaged with the positioning block 49 to adjust the relative position of the lower support seat 42 and the upper support seat 45. The four clamping plates 410 are fixed in place, and when the four clamping plates 410 are in close contact with the shaft accessories to be processed, the second return spring 411 is compressed by force, and the clamping plates 410 slide inside the lower support seat 42 and the upper support seat 45 for fine adjustment. The four clamping plates 410 wrap and limit the shaft accessories to be processed from four directions. The two groups of quick disassembly and assembly components 4 are symmetrically arranged, which can ensure the horizontality of the shaft accessories to be processed before processing, reduce factors affecting processing accuracy, ensure the consistency of the processed products, and perform preliminary limiting on the shaft accessories to be processed.

When it is necessary to rotate and change the angle of the shaft accessories, or to process the area covered by the clamping plate 410, press the flexible positioning key 47 on the outside of the positioning block 49 to compress the first return spring 48, and at the same time lift the handle 46 to drive the slide plate 44, the upper support seat 45 and the flexible positioning key 47 to move upward, so that the clamping plate 410 at the bottom of the upper support seat 45 no longer contacts the shaft accessories, thereby releasing the clamping of the shaft accessories, and slide the first slide seat 41 along the slide groove 3 to change the position of the quick disassembly and assembly component 4, so as to quickly disassemble and replace the shaft accessories and quickly adjust the clamping area of the quick disassembly and assembly component 4, thereby improving the processing efficiency.

1 and 5 to 6, the end limit assembly 5 comprises a driving motor 51, the side wall of the inverted L-shaped plate 2 is fixedly connected with the driving motor 51, the output end of the driving motor 51 is connected with a first gear 52, the outer wall of the first gear 52 is meshedly connected with a transmission belt 53, the other side of the inner wall of the transmission belt 53 is meshedly connected with a second gear 54, the first gear 52 and the second gear 54 are rotatably connected to the right side wall of the base 1, the left side wall of the first gear 52 is fixed with a first screw rod 55, the left side wall of the second gear 54 is fixed with a second screw rod 56, the left ends of the first screw rod 55 and the second screw rod 56 are both rotatably connected to the left side wall of the base 1, the first screw rod 55 and the second screw rod 56 are both arranged inside the base 1, the outer walls of the first screw rod 55 and the second screw rod 56 are commonly threadedly connected with two left-right symmetrical inverted U-shaped frames 57, the first screw rod 55 and the second screw rod 56 are both bidirectional screw rods, the inverted U-shaped frame 57 is slidably connected to the outer wall of the slide groove 3, and the tops of the two inverted U-shaped frames 57 are fixed with a limit plate 58.

Referring to Figure 7, the anti-slip fastening assembly 6 includes an annular frame 61, and the side wall of the limiting plate 58 is fixed with the annular frame 61, the inside of the annular frame 61 is rotatably connected with an internal gear 62, the outer wall of the internal gear 62 is fixed with a control rod 63, the control rod 63 slides through the outer wall of the annular frame 61, the outer wall of the control rod 63 is sleeved with a traction block 64, the outer wall of the traction block 64 is rotatably connected with an electric push rod 65, the electric push rod 65 is fixed to the side wall of the limiting plate 58, the side wall of the internal gear 62 is evenly fixed with a first wedge block 66 along the circumferential direction, the side wall of the annular frame 61 is evenly opened with through holes 67 along the circumferential direction, the through hole 67 is slidably connected with a second wedge block 68, the second wedge block 68 is composed of a wedge block segment and a columnar segment, the outer wall of the first wedge block 66 is tightly attached to the outer wall of the wedge block segment of the second wedge block 68, and the outer wall of the columnar segment of the second wedge block 68 is fixed with a fastening sheet 69.

The output end of the driving motor 51 rotates to drive the first gear 52 and the first screw rod 55 to rotate, and the transmission belt 53 drives the second gear 54 and the second screw rod 56 to rotate. The first screw rod 55 and the second screw rod 56 drive the two inverted U-shaped frames 57 to approach each other, and the two inverted U-shaped frames 57 drive the limit plate 58 to approach the end of the shaft accessory.

The end limit assembly 5 drives the anti-slip fastening assembly 6 to approach the end of the shaft accessory. When the inverted U-shaped frame 57 and the limit plate 58 move to make the fastening piece 69 close to the end of the shaft accessory, the end of the electric push rod 65 extends to push the traction block 64 and the control rod 63 to move. The traction block 64 rotates at the end of the electric push rod 65 and slides on the outer wall of the control rod 63 to adapt to the position movement of the control rod 63. The control rod 63 slides on the annular frame 61 and drives the internal gear 62 to rotate. The first wedge block 66 The outer wall of the first wedge block 66 is matched with the outer wall of the wedge block section of the second wedge block 68, the first wedge block 66 pushes the second wedge block 68 to move, the columnar section of the second wedge block 68 slides inside the through hole 67 and pushes the fastening sheet 69, and the fastening sheet 69 continues to move toward the end direction of the shaft accessory. The outer wall of the fastening sheet 69 is provided with a plurality of anti-slip sheets, which can increase the friction between the fastening sheet 69 and the end of the shaft accessory, thereby realizing the limiting and fastening of the two ends of the shaft accessory from the left and right directions, and improving the clamping effect.

1 and 8 to 10, the inner support assembly 7 includes a third gear 71, the inner wall of the inner gear 62 is meshedly connected with the third gear 71, the inner wall of the third gear 71 is fixed with a roller 72, the outer wall of the roller 72 is symmetrically connected with a third return spring 73, the ends of the third return spring 73 are fixedly connected to the same rotating block 74, the roller 72 is in rolling contact with the outer wall of the rotating block 74, the centers of the third gear 71 and the rotating block 74 are consistent, the side of the rotating block 74 away from the fastening plate 69 is rotatably connected with a pushing end 75, the side of the rotating block 74 close to the fastening plate 69 is fixed with a connecting block 76, the side of the connecting block 76 away from the rotating block 74 is fixed with a limiting ring 77, and the inner part of the limiting ring 77 A second slide rail 78 is evenly arranged along the circumferential direction, and a slide column 79 is slidably connected inside the second slide rail 78. An inner support member 710 is fixed to the end of the slide column 79 away from the connecting block 76. There are six second slide rails 78, six slide columns 79 and six inner support members 710. The second slide rail 78 is an arc-shaped structure. The inner support member 710 consists of a small rectangular section, a large rectangular section that is sleeved on the outside of the small rectangular section and connected by a spring, and an arc-shaped section connected to the large rectangular section. A rubber layer is provided on the surface of the arc-shaped section of the inner support member 710. The side of the limiting ring 77 away from the connecting block 76 is rotatably connected to the inner support seat 711. The small rectangular section and the large rectangular section of the inner support member 710 are both slidably connected to the inside of the inner support seat 711.

When the processing object is a hollow shaft accessory, before the fastening sheet 69 is fastened, the inner support assembly 7 is pushed into the annular frame 61, and the rotating block 74 and the third gear 71 are driven to move to the inside of the inner gear 62 by pushing the pushing end 75. If the teeth on the third gear 71 and the teeth on the inner gear 62 are not completely staggered, the teeth on the inner gear 62 will push the teeth on the third gear 71, causing the third gear 71 and the roller 72 to rotate slightly, and the third return spring 73 is stretched. Or compressed to match the complete engagement of the third gear 71 and the inner gear 62, the rotating inner gear 62 drives the rotating block 74 and the third gear 71 to rotate, the connecting block 76 drives the limit ring 77 to rotate, and the sliding column 79 slides on the outer wall of the second slide rail 78. At the same time, the sliding column 79 drives the small rectangular section and the large rectangular section of the inner support member 710 to slide inside the inner support seat 711, and the arc section of the inner support member 710 moves away from the inner support seat 711 slightly, and the six inner support members 710 move in a fanned-out manner from the center to the periphery.

After the limit ring 77 extends into the hollow shaft, the large rectangular section of the inner support member 710 presses the arc section against the inner wall of the hollow shaft through the spring. When the limit ring 77 rotates, due to the friction between the arc section of the inner support member 710 and the inner wall of the hollow shaft, the inner support member 710 and the inner support seat 711 will not rotate with the limit ring 77. The limit ring 77 drives the slide column 79 to move through the second slide rail 78, and the slide column 79 drives the small rectangular section of the inner support member 710 to further compress the large rectangular section, so that the rubber layer on the surface of the arc section of the inner support member 710 is close to the inner wall of the hollow shaft, and the elastic pressing support of the inner support member 710 is transformed into a rigid support, thereby realizing the function of supporting the two ends of the hollow shaft accessories from the inside to the outside. The internal support clamping can ensure that the hollow shaft accessories will not be deformed or moved during operation, thereby improving the processing accuracy and efficiency, and at the same time, it can also avoid blocking the end processing area.

Referring to Figures 5 and 9, the ends of the inner support mother rod 8 and the inner support sub-rod 9 are fixedly connected to the outer wall of the corresponding inner support seat 711, the ends of the inner support mother rod 8 and the inner support sub-rod 9 are concave-convex matched, and the inner support mother rod 8 and the inner support sub-rod 9 are arranged above the base 1.

The inner support mother rod 8 and the inner support sub-rod 9 are pushed by the inner support seat 711, and the inner support mother rod 8 and the inner support sub-rod 9 move close to each other inside the hollow shaft accessory until the ends are snap-connected. The connected inner support mother rod 8 and the inner support sub-rod 9 support the interior of the hollow shaft accessory, avoiding deformation and bending during the processing, and at the same time avoiding the formation of a cantilever beam structure, thereby ensuring the structural stability of the inner support mother rod 8, the inner support sub-rod 9 and the corresponding inner support assembly 7.

The specific operating steps of the machine tool accessory processing fixture are as follows: when in use, the shaft accessories to be processed are placed on the clamping plate 410 on the top of the lower support seat 42, and the clamping plate 410 at the bottom of the upper support seat 45 is moved to be close to the outer wall of the shaft accessories to be processed. The four clamping plates 410 wrap and limit the shaft accessories to be processed from four directions, which can ensure the horizontality of the installed shaft accessories to be processed before processing and limit the shaft accessories to be processed; when it is necessary to rotate and change the angle of the shaft accessories for processing, or to process the area covered by the clamping plate 410, press the flexible positioning key 47 on the side wall of the positioning block 49 to separate the upper support seat 45 and the lower support seat 42, so as to realize the function of quickly disassembling and replacing shaft accessories and quickly adjusting the clamping area of the quick disassembly assembly 4, thereby improving processing efficiency.

The driving motor 51 drives the two inverted U-shaped frames 57 to drive the limit plate 58 to approach the end of the shaft accessory. At the same time, the anti-slip fastening component 6 approaches the end of the shaft accessory horizontally, and the operating lever 63 is operated. The fastening plate 69 continues to move toward the end of the shaft accessory. At the same time, the fastening plate 69 increases the friction between the end of the shaft accessory and the end of the shaft accessory through the anti-slip plate, thereby achieving the effect of further limiting and fastening the two ends of the shaft accessory from the left and right directions.

When the processing object is a hollow shaft accessory, before the fastening plate 69 is tightened, the inner support assembly 7 is pushed into the annular frame 61, and the control lever 63 is operated. The rotating internal gear 62 drives the six inner support members 710 to move in a fanned-out manner from the center to the periphery until the arc-shaped segment of the inner support member 710 is close to the inner wall of the hollow shaft accessory, so as to provide internal support for the two ends of the hollow shaft accessory from the inside to the outside. At the same time, the inner support assembly 7 is pushed to drive the ends of the inner support mother rod 8 and the inner support sub-rod 9 to engage and connect. The connected inner support mother rod 8 and the inner support sub-rod 9 further support the interior of the hollow shaft accessory, thereby improving the stability of the processing process.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (9)

1. A machine tool accessory processing fixture, comprising a base (1) and a quick disassembly assembly (4), characterized in that an inverted L-shaped plate (2) is fixedly connected to the right outer wall of the base (1), and a slide groove (3) is equidistantly opened at the upper end of the base (1) in the transverse direction, a quick disassembly assembly (4) is symmetrically slidably connected in the middle slide groove (3), and two left-right symmetrical end limit assemblies (5) are slidably connected inside the remaining slide grooves (3), the quick disassembly assembly (4) comprises a first slide seat (41), and the first slide seat (41) is slidably connected in the middle slide groove (3), the top of the first slide seat (41) is fixedly connected to a lower support seat (42), and the top of the lower support seat (42) is fixedly connected to the bottom of the slide groove (3). Two first slide rails (43) are symmetrically provided at the front and rear ends, and slide plates (44) are slidably connected inside the two first slide rails (43). The tops of the two slide plates (44) are fixedly connected to an upper support seat (45), and the top of the upper support seat (45) is fixedly connected to a handle (46). The bottom of the slide plate (44) is symmetrically fixedly connected to two flexible positioning keys (47), and the two flexible positioning keys (47) are connected to each other through a first return spring (48), and the outer wall of the flexible positioning key (47) is snap-connected with a positioning block (49), and the positioning block (49) is fixedly connected to the top of the base (1), and a plurality of positioning blocks (49) are arranged equidistantly from left to right; The outer walls of the two end limit assemblies (5) on the adjacent sides are both provided with anti-skid fastening assemblies (6), and the outer walls of the anti-skid fastening assemblies (6) are connected to the inner support assemblies (7), the outer wall of the left inner support assemblies (7) is fixed with an inner support mother rod (8), and the outer wall of the right end of the inner support mother rod (8) is snap-connected with an inner support sub-rod (9), and the inner support sub-rod (9) is installed on the outer wall of the right inner support assemblies (7). 2. A machine tool accessory processing fixture according to claim 1, characterized in that a V-shaped groove is provided at the top of the lower support seat (42) and the bottom of the upper support seat (45), and two clamping plates (410) are symmetrically slidably connected in the V-shaped groove, and the clamping plate (410) is composed of an arc segment and a column segment, and a second return spring (411) is connected between the lower support seat (42) and the upper support seat (45) and the corresponding arc segment of the clamping plate (410) and is sleeved on the column segment of the clamping plate (410). 3. A machine tool accessory processing fixture according to claim 1, characterized in that the bottom height of the upper support seat (45) is higher than the top height of the lower support seat (42), and the bottom height of the lower support seat (42) is higher than the top height of the positioning block (49). 4. A machine tool accessory processing fixture according to claim 1, characterized in that the end limit assembly (5) comprises a driving motor (51), and the side wall of the inverted L-shaped plate (2) is fixedly connected to the driving motor (51), the output end of the driving motor (51) is connected to a first gear (52), and the outer wall of the first gear (52) is meshedly connected to a transmission belt (53), the other side of the inner wall of the transmission belt (53) is meshedly connected to a second gear (54), and the first gear (52) and the second gear (54) are rotatably connected to the right side wall of the base (1), and the left side wall of the first gear (52) is fixed to a first screw rod (55), A second screw rod (56) is fixed to the left side wall of the second gear (54), and the left ends of the first screw rod (55) and the second screw rod (56) are both rotatably connected to the left side wall of the base (1), the first screw rod (55) and the second screw rod (56) are both arranged inside the base (1), and the outer walls of the first screw rod (55) and the second screw rod (56) are commonly threadedly connected with two left-right symmetrical inverted U-shaped frames (57), the first screw rod (55) and the second screw rod (56) are both bidirectional screw rods, the inverted U-shaped frames (57) are slidably connected to the outer wall of the slide groove (3), and the tops of the two inverted U-shaped frames (57) are fixed with limiting plates (58). 5. A machine tool accessory processing fixture according to claim 4, characterized in that the anti-slip fastening assembly (6) includes an annular frame (61), and the side wall of the limit plate (58) is fixed with an annular frame (61), the inside of the annular frame (61) is rotatably connected with an internal gear (62), and the outer wall of the internal gear (62) is fixed with a control rod (63), the control rod (63) slides through the outer wall of the annular frame (61), and the outer wall of the control rod (63) is sleeved with a traction block (64), the outer wall of the traction block (64) is rotatably connected with an electric push rod (65), and the electric push rod (65) is fixed to the side wall of the limit plate (58). 6. A machine tool accessory processing fixture according to claim 5, characterized in that a first wedge block (66) is evenly fixed on the side wall of the internal gear (62) along the circumferential direction, a through hole (67) is evenly opened on the side wall of the annular frame (61) along the circumferential direction, and a second wedge block (68) is slidably connected in the through hole (67), the second wedge block (68) is composed of a wedge block segment and a columnar segment, and the outer wall of the first wedge block (66) is tightly attached to the outer wall of the wedge block segment of the second wedge block (68), and a fastening plate (69) is fixed to the outer wall of the columnar segment of the second wedge block (68). 7. A machine tool accessory processing fixture according to claim 6, characterized in that the inner support assembly (7) includes a third gear (71), and the inner wall of the internal gear (62) is meshedly connected with the third gear (71), the inner wall of the third gear (71) is fixed with a roller (72), and the outer wall of the roller (72) is symmetrically connected with a third return spring (73), the ends of the third return spring (73) are fixedly connected to the same rotating block (74), and the roller (72) is in rolling contact with the outer wall of the rotating block (74), the centers of the third gear (71) and the rotating block (74) are consistent, and the side of the rotating block (74) away from the fastening plate (69) is rotatably connected with a pushing end (75), and the side of the rotating block (74) close to the fastening plate (69) is fixed with a connecting block (76). 8. A machine tool accessory processing fixture according to claim 7, characterized in that a limiting ring (77) is fixed on the side of the connecting block (76) away from the rotating block (74), and a second slide rail (78) is evenly opened inside the limiting ring (77) along the circumferential direction, and a slide column (79) is slidably connected inside the second slide rail (78), and an inner support member (710) is fixed on the end of the slide column (79) away from the connecting block (76), and the second slide rail (78), the slide column (79) and the inner support member (710) are connected to each other. 0) are provided with six, and the second slide rail (78) is an arc-shaped structure, the inner support member (710) is composed of a small rectangular section, a large rectangular section sleeved on the outside of the small rectangular section and connected by a spring, and an arc-shaped section connected to the large rectangular section, and a rubber layer is provided on the surface of the arc-shaped section of the inner support member (710), the side of the limiting ring (77) away from the connecting block (76) is rotatably connected to the inner support seat (711), and the small rectangular section and the large rectangular section of the inner support member (710) are both slidably connected to the inside of the inner support seat (711). 9. A machine tool accessory processing fixture according to claim 1, characterized in that the ends of the inner support mother rod (8) and the inner support sub-rod (9) are matched in a concave-convex manner, and the inner support mother rod (8) and the inner support sub-rod (9) are arranged above the base (1).