Tool clamp for machining deep hole in large-diameter cylindrical part

Abstract

The utility model discloses a work fixture for machining a deep hole in a large-diameter cylindrical part, which comprises a machining frame, the machining frame comprises a base, and machining equipment is mounted on the top surface of the base; clamping assemblies are symmetrically arranged on the top face of the base and located on the two sides of the machining equipment. Wherein the clamping assembly comprises a mechanical bin, rotating clamping plates are symmetrically arranged on the upper portion of the interior of the mechanical bin, an upper clamping plate is rotationally connected to the tops of the rotating clamping plates, rotating wheels are rotationally connected to the bottom ends of the rotating clamping plates, and fixing columns are fixedly connected to the outer sides of the bottoms of the rotating clamping plates; an auxiliary spring is fixedly connected between the two fixing columns. An angle adjusting mechanism is arranged beside one mechanical bin; according to the device, the height and the position of the axis of cylindrical parts with different diameters after fixing can be fixed, an angle adjusting mechanism can be conveniently used for rotating, and the situation that the machining depth of the cylindrical parts is dislocated due to shaking in the overturning process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a tooling fixture for machining deep holes of large-diameter cylindrical parts. Background Art

[0002] Publication No. CN216990845U discloses a front and back fixture for cylindrical parts, which can solve the technical problem of large positioning errors when using two sets of fixtures to process the cross-section located on the axis of the cylindrical part and the holes on the two generatrixes of the cylindrical part. A front and back fixture for cylindrical parts, including a base plate and a positioning structure, the positioning structure also includes front and back positioning blocks and front and back positioning pins, the front and back positioning pins penetrate the cylindrical part and intersect the axis of the cylindrical part perpendicularly, the front and back positioning blocks are installed on the base plate or the circumferential surface positioning blocks, the front and back positioning blocks are used to position and support the parts of the front and back positioning pins extending from the two sides of the cylindrical part, this device uses the same set of positioning structures for the two clamping and positioning of the cylindrical part, the positioning size and position of the positioning structure can be kept consistent, and the positioning error of the hole to be processed caused by the secondary clamping using two sets of fixtures can be effectively eliminated, but the patent still has the following problems in actual use:

[0003] The above-mentioned device requires that the cylindrical part itself has a through hole, preferably a through hole that overlaps with the diameter of the cylindrical part, so that the front and back positioning pins can pass through the cylindrical part for processing. However, this requires that the cylindrical part itself has been pre-processed, and the cylindrical part can only be rotated at a fixed angle of 180 degrees, and the rotation angle cannot be adjusted arbitrarily, which ultimately makes the use of the device have more limitations and low practicality.

[0004] A fixture for machining deep holes in large-diameter cylindrical parts is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a tooling fixture for machining deep holes in large-diameter cylindrical parts, so as to solve the problem that the use of the device proposed in the above-mentioned background technology requires the cylindrical parts themselves to be pre-machined and have through holes, and the cylindrical parts can only be rotated at a fixed angle of 180 degrees, and the rotation angle cannot be adjusted arbitrarily, which ultimately makes the use of the device have more limitations and low practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture for machining deep holes of large-diameter cylindrical parts, comprising a machining frame, the machining frame comprising a base, and a machining device is installed on the top surface of the base;

[0007] The top surface of the base is symmetrically provided with clamping components on both sides of the processing equipment;

[0008] The clamping assembly includes a mechanical warehouse, a rotating clamping plate is symmetrically arranged on the upper part of the mechanical warehouse, the top of the rotating clamping plate is rotatably connected to the upper clamping plate, the bottom end of the rotating clamping plate is rotatably connected to the rotating wheel, the outer side of the bottom of the rotating clamping plate is fixedly connected to a fixed column, and an auxiliary spring is fixedly connected between the two fixed columns;

[0009] Among them, an angle adjustment mechanism is arranged next to a mechanical warehouse.

[0010] Preferably, a lifting column is slidably connected to the middle of the mechanical compartment, the top end of the lifting column extends out of the mechanical compartment and is fixedly connected to an arc-shaped supporting plate, and the bottom end of the lifting column is fixedly connected to a curved push plate.

[0011] Preferably, the arc surfaces on both sides of the curved push plate overlap with the rotating wheel, the curved push plate is slidably connected to the mechanical warehouse, the bottom surface of the curved push plate is fitted with a push block, the push block is slidably connected to the mechanical warehouse, the push block is fixedly connected to an electric push rod, and the electric push rod is fixedly connected to the mechanical warehouse.

[0012] Preferably, the upper part of the rotating splint extends out of the mechanical compartment, the middle part of the rotating splint is rotatably connected to the mechanical compartment, and the mechanical compartment is fixedly connected to the base.

[0013] Preferably, the angle adjustment mechanism includes a mounting frame, which is fixedly connected to the base, and a rotating disk is rotatably connected to a side of the mounting frame close to the mechanical warehouse, a surface of the rotating disk is fixedly connected to a fixed warehouse, and a bidirectional screw is rotatably connected to the interior of the fixed warehouse.

[0014] Preferably, the height of the middle of the bidirectional screw is constant, and a screw sleeve is symmetrically provided on the bidirectional screw. A first arc plate is fixedly connected to the outer side of the screw sleeve, and the straight side of the first arc plate is symmetrically slidably connected to the second arc plate, and the straight side of the second arc plate is symmetrically slidably connected to the third arc plate, and the straight side of the third arc plate is symmetrically slidably connected to the fourth arc plate, and the straight side of the fourth arc plate is fixedly connected to a rubber pad, and both sides of the first arc plate are penetrated by limit columns fixedly connected to the fixed bin.

[0015] Preferably, a knob is rotatably connected to the other side of the mounting frame, the knob is fixedly connected to the rotating disk, a pointer is fixedly connected to the side of the knob, a dial fixedly connected to the mounting frame is provided on the outside of the knob, and a motor is fixedly connected to the top of the bidirectional screw.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the fixture for processing deep holes of large-diameter cylindrical parts enables the device to fix the axis height and position of cylindrical parts of different diameters after being fixed, and is convenient to rotate using the angle adjustment mechanism, and will not cause the processing depth of the cylindrical parts to be misaligned due to shaking during flipping. The specific contents are as follows:

[0017] 1. The curved push plate is raised by the electric push rod and the push block, so that the lifting column pushes the arc-shaped support plate to rise, and when the curved push plate rises, it squeezes the turntable to rotate the rotating clamp, so that the rotating clamp pushes the upper clamp to squeeze the cylindrical part from the upper side, and finally the cylindrical part is clamped and fixed, which is convenient for subsequent processing. In addition, the device can fix the axis height and position of cylindrical parts of different diameters, which is convenient for rotation using the angle adjustment mechanism, and will not cause the processing depth of the cylindrical parts to be misaligned due to shaking during flipping.

[0018] 2. By rotating the knob to rotate the rotating disk, the cylindrical part is rotated to a specific angle with its own center as the axis, and then the clamping plate and the arc-shaped support plate are used to re-fix the cylindrical part, so that the cylindrical part can be adjusted to any angle in situ, increasing the flexibility of angle adjustment during cylindrical part processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-section structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the installation structure of the mechanical compartment and the rotating clamping plate;

[0021] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0022] Figure 4 is a schematic diagram of the side structure of the mounting frame;

[0023] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of area B in the middle.

[0024] In the figure: 1. processing frame; 101. base; 102. processing equipment; 2. clamping assembly; 201. mechanical warehouse; 202. rotating clamping plate; 203. upper clamping plate; 204. rotating wheel; 205. fixing column; 206. auxiliary spring; 207. lifting column; 208. arc support plate; 209. curved push plate; 210. push block; 211. electric push rod; 3. angle adjustment mechanism; 301. mounting frame; 302. rotating disk; 303. fixed warehouse; 304. bidirectional screw; 305. motor; 306. limiting column; 307. first arc plate; 308. second arc plate; 309. third arc plate; 310. fourth arc plate; 311. knob; 312. dial; 313. pointer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 , the utility model provides a technical solution: a fixture for processing deep holes in large-diameter cylindrical parts, including a processing frame 1, the processing frame 1 includes a base 101, and a processing device 102 is installed on the top surface of the base 101;

[0027] The top surface of the base 101 and the two sides of the processing equipment 102 are symmetrically provided with clamping components 2;

[0028] Among them, the clamping component 2 includes a mechanical warehouse 201, and a rotating clamp 202 is symmetrically arranged on the upper inner part of the mechanical warehouse 201. The top of the rotating clamp 202 is rotatably connected to the upper clamp 203, and the bottom end of the rotating clamp 202 is rotatably connected to the rotating wheel 204. The bottom outer side of the rotating clamp 202 is fixedly connected to a fixed column 205, and an auxiliary spring 206 is fixedly connected between the two fixed columns 205; the auxiliary spring 206 can pull the bottom rotating wheel 204 of the rotating clamp 202 to always fit the arc-shaped support plate 208, and when the arc-shaped support plate 208 is not squeezed by the push block 210, the auxiliary spring 206 will pull the bottom of the rotating clamp 202 to retract, thereby causing the lifting column 207 to descend, and finally when the cylindrical part is unfixed, the upper clamp 203 will automatically move away from the cylindrical part.

[0029] The middle part of the mechanical warehouse 201 is slidably connected with a lifting column 207, the top of the lifting column 207 extends out of the mechanical warehouse 201 and is fixedly connected with an arc-shaped supporting plate 208, and the bottom end of the lifting column 207 is fixedly connected with a curved push plate 209; the curved surfaces on both sides of the curved push plate 209 overlap with the rotating wheel 204, the curved push plate 209 is slidably connected with the mechanical warehouse 201, and the bottom surface of the curved push plate 209 is fitted with a push block 210, and the push block 210 slides with the mechanical warehouse 201 The push block 210 is fixedly connected with an electric push rod 211, and the electric push rod 211 is fixedly connected to the mechanical warehouse 201; starting the electric push rod 211 causes the push block 210 to push the curved push plate 209 to rise, thereby causing the lifting column 207 to push the arc-shaped support plate 208 to rise, and when the curved push plate 209 rises, it squeezes the rotating wheel 204 to rotate the rotating splint 202, thereby causing the rotating splint 202 to push the upper splint 203 to squeeze the cylindrical parts from obliquely above.

[0030] An angle adjustment mechanism 3 is arranged next to a mechanical compartment 201 . The upper part of a rotating clamping plate 202 extends out of the mechanical compartment 201 . The middle part of the rotating clamping plate 202 is rotatably connected to the mechanical compartment 201 . The mechanical compartment 201 is fixedly connected to the base 101 .

[0031] The angle adjustment mechanism 3 includes a mounting frame 301, which is fixedly connected to the base 101. A rotating disk 302 is rotatably connected to one side of the mounting frame 301 close to the mechanical compartment 201. A fixed compartment 303 is fixedly connected to the surface of the rotating disk 302. A bidirectional screw 304 is rotatably connected to the interior of the fixed compartment 303.

[0032] The middle of the bidirectional screw 304 has a constant height, and a screw sleeve is symmetrically sleeved on the bidirectional screw 304. A first arc plate 307 is fixedly connected to the outer side of the screw sleeve, and a second arc plate 308 is symmetrically slidably connected to the straight side of the first arc plate 307, and a third arc plate 309 is symmetrically slidably connected to the straight side of the second arc plate 308, and a fourth arc plate 310 is symmetrically slidably connected to the straight side of the third arc plate 309, and a rubber pad is fixedly connected to the straight side of the fourth arc plate 310, and a limit column 306 fixedly connected to the fixed bin 303 is penetrated and connected on both sides of the first arc plate 307; the screw sleeve enables the first arc plate 307 to move with the rotation of the bidirectional screw 304, and the starter The machine 305 enables the bidirectional screw 304 to drive the first arc plate 307 to approach each other, and as the first arc plate 307, the second arc plate 308, the third arc plate 309 and the fourth arc plate 310 contact the end of the cylindrical part, the second arc plate 308, the third arc plate 309 and the fourth arc plate 310 rotate due to the extrusion, thereby clamping the end of the cylindrical part, avoiding the situation where the end of the cylindrical part is difficult to clamp when it is irregularly shaped. The limiting column 306 can increase the stability of the first arc plate 307 when sliding, and the first arc plate 307, the second arc plate 308, the third arc plate 309 and the fourth arc plate 310 achieve sliding by embedding the sliding grooves inside the adjacent parts.

[0033] The other side of the mounting frame 301 is rotatably connected to a knob 311, which is fixedly connected to the rotating disk 302. A pointer 313 is fixedly connected to the side of the knob 311. A dial 312 fixedly connected to the mounting frame 301 is provided on the outside of the knob 311. A motor 305 is fixedly connected to the top of the bidirectional screw 304. When the rotating disk 302 rotates, the center height of the bidirectional screw 304 remains constant.

[0034] Working principle: Before using this kind of fixture for machining deep holes of large-diameter cylindrical parts, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 5 As shown, firstly, the cylindrical part is placed on two arc-shaped supporting plates 208, and one end of the cylindrical part is placed between two first arc plates 307;

[0035] At this time, the electric push rod 211 is started so that the push block 210 pushes the curved push plate 209 to rise, so that the lifting column 207 pushes the arc-shaped support plate 208 to rise, and when the curved push plate 209 rises, it squeezes the rotating wheel 204 to rotate the rotating clamping plate 202, so that the rotating clamping plate 202 pushes the upper clamping plate 203 to squeeze the cylindrical part from the upper side, and finally the cylindrical part is clamped and fixed, which is convenient for subsequent processing. In addition, the device can fix the axis height and position of cylindrical parts of different diameters after being fixed, which is convenient for rotation using the angle adjustment mechanism 3, and will not cause processing misalignment due to shaking during flipping;

[0036] After the cylindrical part is fixed by the upper clamping plate 203, the motor 305 is started so that the bidirectional screw 304 drives the first arc plate 307 to approach each other, and as the first arc plate 307, the second arc plate 308, the third arc plate 309 and the fourth arc plate 310 contact the end of the cylindrical part, the second arc plate 308, the third arc plate 309 and the fourth arc plate 310 rotate due to the extrusion, thereby clamping the end of the cylindrical part, avoiding the situation that the end of the cylindrical part is difficult to clamp when it is irregularly shaped;

[0037] When the cylindrical part needs to be rotated, the electric push rod 211 is started to move the push block 210, thereby canceling the state in which the cylindrical part is fixed by the upper clamping plate 203 and the arc-shaped support plate 208, and finally the knob 311 is rotated to rotate the rotating disk 302, so that the cylindrical part rotates to a specific angle with its own center as the axis, and then the upper clamping plate 203 and the arc-shaped support plate 208 are re-fixed to fix the cylindrical part, so that the cylindrical part can be adjusted to any angle in situ, which increases the flexibility of angle adjustment when the cylindrical part is processed;

[0038] The rotating angle of the cylindrical part can be directly and intuitively understood through the dial 312 and the pointer 313, which facilitates adjustment.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fixture for machining deep holes in large-diameter cylindrical parts, comprising a machining frame (1), the machining frame (1) comprising a base (101), a machining device (102) being mounted on the top surface of the base (101); It is characterized in that Also includes: The top surface of the base (101) is symmetrically provided with clamping components (2) located on both sides of the processing equipment (102); The clamping assembly (2) comprises a mechanical compartment (201), a rotating clamping plate (202) is symmetrically arranged on the upper part of the interior of the mechanical compartment (201), the top of the rotating clamping plate (202) is rotatably connected to an upper clamping plate (203), the bottom of the rotating clamping plate (202) is rotatably connected to a rotating wheel (204), the outer side of the bottom of the rotating clamping plate (202) is fixedly connected to a fixing column (205), and an auxiliary spring (206) is fixedly connected between the two fixing columns (205); Wherein, an angle adjustment mechanism (3) is arranged next to a mechanical compartment (201).

2. A fixture for machining deep holes in large-diameter cylindrical parts according to claim 1, characterized in that: The middle part of the mechanical warehouse (201) is slidably connected to a lifting column (207), the top end of the lifting column (207) extends out of the mechanical warehouse (201) and is fixedly connected to an arc-shaped supporting plate (208), and the bottom end of the lifting column (207) is fixedly connected to a curved push plate (209).

3. A fixture for machining deep holes of large diameter cylindrical parts according to claim 2, characterized in that: The arc surfaces on both sides of the curved push plate (209) overlap with the rotating wheel (204), the curved push plate (209) is slidably connected to the mechanical compartment (201), the bottom surface of the curved push plate (209) is fitted with a push block (210), the push block (210) is slidably connected to the mechanical compartment (201), the push block (210) is fixedly connected to an electric push rod (211), and the electric push rod (211) is fixedly connected to the mechanical compartment (201).

4. The fixture for machining deep holes of large-diameter cylindrical parts according to claim 1, characterized in that: The upper part of the rotating clamping plate (202) extends out of the mechanical compartment (201), the middle part of the rotating clamping plate (202) is rotatably connected to the mechanical compartment (201), and the mechanical compartment (201) is fixedly connected to the base (101).

5. The fixture for machining deep holes of large-diameter cylindrical parts according to claim 1, characterized in that: The angle adjustment mechanism (3) comprises a mounting frame (301), wherein the mounting frame (301) is fixedly connected to the base (101), a rotating disk (302) is rotatably connected to a side of the mounting frame (301) close to the mechanical compartment (201), a fixed compartment (303) is fixedly connected to the surface of the rotating disk (302), and a bidirectional screw (304) is rotatably connected to the interior of the fixed compartment (303).

6. A fixture for machining deep holes in large-diameter cylindrical parts according to claim 5, characterized in that: The height of the middle of the bidirectional screw (304) is constant, and a screw sleeve is symmetrically sleeved on the bidirectional screw (304). The outer side of the screw sleeve is fixedly connected to a first arc plate (307), the straight side of the first arc plate (307) is symmetrically slidably connected to a second arc plate (308), the straight side of the second arc plate (308) is symmetrically slidably connected to a third arc plate (309), the straight side of the third arc plate (309) is symmetrically slidably connected to a fourth arc plate (310), the straight side of the fourth arc plate (310) is fixedly connected to a rubber pad, and both sides of the first arc plate (307) are penetrated by limit columns (306) fixedly connected to the fixed bin (303).

7. The fixture for machining deep holes of large-diameter cylindrical parts according to claim 5, characterized in that: The other side of the mounting frame (301) is rotatably connected to a knob (311), the knob (311) is fixedly connected to the rotating disk (302), a pointer (313) is fixedly connected to the side of the knob (311), a dial (312) fixedly connected to the mounting frame (301) is provided on the outside of the knob (311), and a motor (305) is fixedly connected to the top end of the bidirectional screw rod (304).

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