CN206185202U - Supporting sleeve part drill jig - Google Patents

Abstract

The utility model provides a drilling fixture for supporting sleeve parts, which includes a machine tool connection seat and a turntable. The machine tool connection seat is rotatably connected to the turntable above it, and the rotational connection is provided with a circumferential positioning mechanism. The support sleeve adopts a cylindrical surface. , the rear end face and the gap in the middle of the rear end face for precise positioning, and at the same time, use the tension ring to tighten the inner ring of the support sleeve so that it will not rotate during processing. The mechanism is connected by bearing rotation, which is flexible and durable in rotation. The positioning mechanism adopts stoppers and spring pins, and the positioning accuracy is accurate and reliable. At the same time, it is designed with a machine connection seat, which is convenient for the fixture to be used on different drilling machines.

Description

Drilling fixture for supporting sleeve parts

technical field

The utility model relates to a clamp for a drilling machine, in particular to a clamp for a drilling machine for supporting sleeve parts.

Background technique

Supporting sleeve parts are widely used in the machinery industry as parts connecting and supporting parts, but on the one hand, because they are used as connecting workpieces of parts and belong to sleeve parts, they are usually processed radially and axially. On the one hand, it is required that the fixture can process one orientation, such as radial or axial, after being clamped once, and then rotate 90 degrees to process another orientation, and the rotary table can realize rotation and positioning. For sleeve parts, it is necessary to ensure reliable positioning and clamping in the axial and circumferential directions, which makes the design of the fixture difficult.

This application combines the characteristics of the bearing sleeve parts to be processed, uses the cylindrical surface, the rear end surface and the gap in the middle of the rear end surface for precise positioning, and uses the tensioning ring to tighten the inner ring of the bearing sleeve so that it will not be in the process of processing. As for the rotation; at the same time, a rotating mechanism and a positioning mechanism are designed at the lower end of the clamp body. The rotating mechanism adopts a bearing to rotate and connect, which is flexible and durable to rotate. The positioning mechanism adopts a stopper and a spring pin, and the positioning accuracy is accurate and reliable. At the same time, it is designed with a machine tool connection seat to facilitate its connection to different drilling machines, or use the machine tool connection seat to connect the adapter plate so that it can be drilled in the up and down direction, which can be used on a radial drilling machine.

Contents of the invention

The purpose of this utility model is: to provide a kind of drilling machine clamp that realizes the positioning of the support sleeve and its axial and radial drilling through rotation.

The purpose of this utility model is achieved in this way: a kind of supporting sleeve drilling machine fixture comprises machine tool connection seat 1, turntable 2, and described machine tool connection seat 1 is connected with the turntable 2 that is positioned at above it in rotation, and machine tool connection seat 1 and turntable 2 The rotation connection between them is provided with a circumferential positioning mechanism, and the upper surface of the middle disk of the turntable 2 is provided with a vertical plate 21 vertical to the upper surface of the turntable 2, and a positioning plate 4 is fixedly installed at the front center of the vertical plate 21 for positioning. The front surface of the plate 4 is provided with a vertical boss 41 protruding forward. The left and right sides of the boss 41 are parallel to each other and perpendicular to the front surface of the positioning plate 4. The workpiece groove 303 in the vertical direction cooperates to position the support sleeve circumferentially, the front surface of the positioning plate 4 is provided with a plane for fitting the rear end surface of the support sleeve 3, and the front left side of the vertical plate 21 is provided with The drill sleeve support plate 22 protruding forward, three drill sleeve one 5 are fixed on the drill sleeve support plate 22, the fixed position of the drill sleeve one 5 is adapted to the three radial holes 301 to be processed on the left side of the processed support sleeve 3 , the threaded part provided at the front end of the positioning shaft 6 is screwed with a compression nut 7, and the split washer 8 is arranged at the front end of the support sleeve 3;

The middle part of the positioning shaft 6 is coaxially matched with the support sleeve 3 for radial positioning of the support sleeve 3. The rear end of the positioning shaft 6 is disc-shaped, and the rear end of the positioning shaft 6 is disc-shaped. The surface is fixed on the rear side surface of the riser 21;

The vertical plate 21 is fixed with four drill sleeves 2 30 whose axes are arranged along the front and rear directions. The position of the drill sleeve 2 30 is adapted to the position of the radial hole 302 to be processed of the support sleeve 3, and the circle of the rear end of the positioning shaft Disc and locating plate 4 are provided with the through hole of front and rear direction at the suitable position of drill bushing 2 30, in order to avoid drill bit.

The structure in which the machine tool connection seat 1 is rotationally connected to the turntable 2 above it is as follows: the lower end of the turntable 2 is provided with a rotating shaft 29, and the rotating shaft 29 passes through adjacent deep groove ball bearings 1 20 and 2 deep groove ball bearings 28 Rotately connected with the machine tool connection seat 1; the rotating shaft 29 fixes the inner rings of the deep groove ball bearing 1 20 and the deep groove ball bearing 2 28 through the upper shaft shoulder and the round nut 17 and the round nut 2 18 screwed together at the lower end, and the machine tool connection seat 1 The upper end presses the outer rings of deep groove ball bearing 1 20 and deep groove ball bearing 2 28 through the inner flange smaller in diameter than the outer ring of the bearing and the bearing cover 19 at the lower end, and the outer cylindrical surface of the lower end of bearing cover 19 is connected to the machine tool connection seat 1 threaded connection.

The rotation connection between the machine tool connection seat 1 and the turntable 2 is provided with a circumferential positioning mechanism: the upper disc-shaped upper surface edge of the machine tool connection seat 1 is provided with an upwardly protruding stopper. 101 and stopper two 102, the lower surface edge of the middle disk of the turntable 2 is provided with a downwardly protruding stopper three 201, and the stopper three 201 is located in the space between the first stopper 101 and the second stopper 102 Among them, one side of the stopper 201 contacts with the stopper 101 and touches the stopper 2 102 after rotating, and the turntable 2 rotates within the range of 90 degrees. Two spring pins are provided, and radial pin holes 23 corresponding to the spring pins are provided on the disc of the turntable 2 to realize the circumferential fixation between the machine tool connection seat 1 and the turntable 2 .

From the middle part of the positioning shaft 6 to the circumferential direction of the positioning plate 4, four holes are uniformly arranged through the center of the positioning shaft 6, each hole is equipped with a tensioning pin 9, and the tensioning pin 9 is located at the end of the positioning shaft 6 in the direction of the center. The part is a conical surface, and its conical surface is in contact with the steel ball 16 set in the center hole of the positioning shaft 6. The end surface of the tensioning pin 9 located on the outer cylindrical surface of the positioning shaft 6 is in contact with the tensioning ring 10. The tensioning ring 10 has a Notched ring, the tension ring 10 is located in the annular groove opened on the outer cylindrical surface of the positioning shaft 6, the rear of the steel ball 16 in the center hole of the positioning shaft 6 is in contact with the moving pin 15, and the moving pin 15 is slidingly fitted with the center hole of the positioning shaft 6 , the rear end of moving pin 15 contacts with the front end of push rod 13, and the middle of push rod is provided with screw thread to front end outer cylindrical surface, is screwed with the internal thread of threaded tube 12 that is fixed on positioning shaft 6 rear ends.

The rear end of the push rod 13 is fixed with a handle bar 14 perpendicular to its axis.

Spring pin comprises draw ring 24, pin shell 25, spring 26, bearing pin 27, and the pin shell 25 of spring pin is fixed on the edge of the lower surface of machine tool connection seat 1 top disk shape, and draw ring 24 passes bearing pin 27 lower ends to open The upper end of the spring 26 is pressed against the flange of the spring pin, and the lower end is pressed against the inner concave step of the pin shell. The lower end surface of the pin shell 25 is provided with an upward radially penetrating slot 251, used to accommodate the pull ring 24.

Compared with the prior art, the utility model has the following advantages:

1. The connecting seat of the turntable and the machine tool is connected by bearing rotation, which is convenient and flexible to rotate.

2. The positioning mechanism of stop block and spring pin is adopted to make the positioning of the turntable accurate and reliable.

3. Use the inner hole, the rear end surface and the grooves on the rear end surface of the support sleeve to reliably position the support sleeve.

4. The structure is exquisite, easy to manufacture, and low in cost.

Description of drawings

Fig. 1 is the overall structural diagram of the drilling machine fixture for supporting sleeve parts;

Fig. 2 is the supporting sleeve parts to be processed;

Fig. 3 is a schematic diagram of the positioning structure of the support sleeve;

Fig. 4 is a schematic diagram of a reliable positioning structure in the circumferential direction of the support sleeve;

Fig. 5 is a schematic diagram of the rotary connection structure between the machine tool connection seat and the turntable;

Fig. 6 is a schematic diagram of the machine tool connection seat and the rotating circumferential positioning structure of the turntable;

Fig. 7 is a schematic diagram of the position installation structure of the drill sleeve on the rear end face of the positioning sleeve.

detailed description

With reference to Figures 1 to 7, a drilling fixture for supporting sleeve parts includes a machine tool connection seat 1 and a turntable 2. The upper surface of the middle disc of the turntable 2 is provided with a vertical plate 21 perpendicular to the upper surface of the turntable 2. The front of the vertical plate 21 is Center position is fixedly installed with positioning plate 4, and the front surface of positioning plate 4 is provided with and protrudes forward vertical boss 41, and the left and right sides of boss 41 are parallel to each other and perpendicular to the front surface of positioning plate 4, and the front surface of boss 41 The left and right side surfaces are in clearance fit with the workpiece groove 303 in the vertical direction in the middle of the workpiece to position the workpiece in the circumferential direction. The rear end surface of the processed support sleeve 3 is fixedly attached to the front of the positioning plate 4 On the surface, the front left side of the vertical plate 21 is provided with a drill bushing support plate 22 protruding forward, and three drill bushings 15 are fixed on the drill bushing support plate 22. The three radial holes 301 to be processed on the left side of the sleeve 3 are compatible, and the threaded part provided at the front end of the positioning shaft 6 is screwed with a compression nut 7. By tightening the compression nut 7, the split washer 8 is pressed, and the split washer is pressed against the support sleeve. 3, so as to realize the axial positioning of the support sleeve.

The middle part of the positioning shaft 6 is coaxially matched with the supporting sleeve 3 for the radial positioning of the supporting sleeve 3, and four holes are uniformly arranged from the middle part of the positioning shaft 6 to the circumferential direction of the positioning plate 4 and penetrate to the center of the positioning shaft 6. Each hole is equipped with a tension pin 9, and the end of the tension pin 9 located in the center direction of the positioning shaft 6 is a conical surface, which contacts the steel ball 16 arranged in the center hole of the positioning shaft 6 through the conical surface. 9 The end surface of the outer cylindrical surface of the positioning shaft 6 is in contact with the tensioning ring 10, the tensioning ring 10 is in the form of a ring with a gap, the tensioning ring 10 is located in the annular groove opened on the outer cylindrical surface of the positioning shaft 6, and the central hole of the positioning shaft 6 The rear of the steel ball 16 is in contact with the moving pin 15, and the moving pin 15 is slidingly fitted with the center hole of the positioning shaft 6. The rear end of the moving pin 15 is in contact with the front end of the push rod 13, and the outer cylindrical surface of the push rod is provided with threads from the middle to the front end. , screwed with the inner thread of the threaded pipe 12 fixed on the rear end of the positioning shaft 6, to push the moving pin 15 to move forward, and push the steel ball 16 to eject the four tension pins 9 to move to the outside of the center of the positioning shaft 6, Tightening the tensioning ring 10, the ring of the tensioning ring 10 is disconnected and deformed under the tensioning force of the tensioning pin 9, causing the diameter of the tensioning ring 10 to become larger, and the outer ring of the tensioning ring 10 clamps the support sleeve 3 The inner cylindrical surface prevents the support sleeve 3 from rotating, so that the relative position accuracy between the processing holes of the support sleeve 3 is not affected, although the left and right sides of the boss 41 set on the front surface of the positioning plate 4 are in the middle of the workpiece The clearance fit of the grooves in the vertical direction realizes the circumferential positioning of the workpiece, but at this time, the left and right sides of the boss 41 are matched with the groove clearances in the vertical direction in the middle of the workpiece, and the support sleeve 4 is in the middle of the workpiece. Slight shaking will occur during the machining process, which will affect the machining accuracy. For holes with general precision, or the support sleeve 3 processed at the same time for all holes in one direction, the step of tightening the tension ring 10 to tighten the inner ring of the support sleeve 3 can be omitted.

The rear end of the push rod 13 is fixed with a handle bar 14 perpendicular to its axis to facilitate the rotation of the push rod 13 . The rear end of the positioning shaft 6 is disc-shaped, and the disc-shaped front surface of the rear end of the positioning shaft 6 is fixed on the rear side surface of the vertical plate 21 .

The lower end of the turntable 2 is provided with a rotating shaft 29, the rotating shaft 29 is rotationally connected with the machine tool connection seat 1 through the adjacent deep groove ball bearing 1 20 and the second deep groove ball bearing 28, and the rotating shaft 29 is rotated with the lower end through the upper shoulder. Round nut one 17, round nut two 18 fix the inner rings of deep groove ball bearing one 20 and deep groove ball bearing two 28, and the upper end of the machine tool connection seat 1 is pressed by the inner flange smaller than the diameter of the bearing outer ring and the bearing cover 19 at the lower end. Tighten the outer ring of deep groove ball bearing one 20, deep groove ball bearing two 28, and the outer cylindrical surface of bearing cap 19 lower ends is threadedly connected with machine tool connection seat 1.

Two spring pins are evenly arranged in the circumferential direction on the disc-shaped lower surface edge of the upper part of the machine tool connection seat 1, and the spring pins include a pull ring 24, a pin shell 25, a spring 26, a pin shaft 27, and the pin shell 25 of the spring pin Fixed on the edge of the disc-shaped lower surface of the machine tool connection seat 1, the pull ring 24 passes through the radial hole provided at the lower end of the pin shaft 27 and is connected with it. The upper end of the spring 26 is supported on the flange of the spring pin, and the lower end is supported on the On the concave step of the pin housing, radial pin holes 23 corresponding to the spring pins are arranged on the disc of the turntable 2 to realize the circumferential fixation between the machine tool connection seat 1 and the turntable 2 .

The upper disc-shaped upper surface edge of the machine tool connection seat 1 is provided with an upwardly protruding stopper 101 and a second stopper 102, and the lower surface edge of the middle disc of the turntable 2 is provided with a downward protruding stopper. The raised block 3 201, the block 3 201 is located in the space between the block 101 and the block 2 102, the side of the block 3 201 contacts with the block 101 and rotates to touch the block 2 102, and the turntable 2 rotates 90 degree range.

The lower end surface of the pin housing 25 is provided with an upward radially penetrating slot 251 for accommodating the pull ring 24 .

The vertical plate 21 is fixed with four drill sleeves 2 30 whose axes are arranged along the front and rear directions. The position of the drill sleeve 2 30 is adapted to the position of the radial hole 302 to be processed of the support sleeve 3, and the circle of the rear end of the positioning shaft Disc and locating plate 4 are provided with the through hole of front and rear direction at the suitable position of drill bushing 2 30, in order to avoid drill bit.

When the support sleeve is drilled, the support sleeve 3 is installed on the positioning shaft 6 along the inner hole, the circumferential direction position of the support sleeve 3 is adjusted, and the workpiece groove 303 in the vertical direction of the rear end is aligned with the left and right sides of the boss 41. The two sides are clearance fit, the front end of the positioning shaft 6 is put on the split washer 8, the compression nut 7 is tightened, the support sleeve 3 is axially fixed, the handle rod 14 is rotated to make the push rod 13 move forward spirally, and the moving pin 15 is pushed to push the steel ball 16. The steel ball 16 moves forward and pushes the four tensioning pins 9 to move to the outside of the center of the positioning shaft 6, tightening the tensioning ring 10, and the diameter of the outer circle of the tensioning ring 10 exceeds the positioning shaft 6 to cooperate with the inner hole of the support sleeve 3 so that the tension ring 10 tightens the inner hole of the support sleeve, so that the support sleeve 3 can be reliably positioned in the circumferential direction, turn the turntable 2 to make the stopper three 201 touch the stopper one 101, pull the pull ring 24, and the pull ring 24 rotates 90 degrees, the pull ring 24 enters the slot 251, the pin shaft 27 pops forward to the corresponding pin hole of the turntable 2, adjusts the position of the drill bit of the drilling machine, and drills the radial holes 301 corresponding to the drill sleeve 1 in turn. After processing the radial holes of the support sleeve 3, pull the pull ring 24 and rotate it 90 degrees, and the pin shaft 27 is removed from the pin hole of the turntable 2; turn the turntable 2 so that the stopper three 201 touches the stopper two 102, and pull the pull ring 24. The pull ring 24 rotates 90 degrees, the pull ring 24 enters the slot 251, the pin shaft 27 pops forward to another pin hole corresponding to the turntable 2, adjust the position of the drill bit of the drilling machine, and correspond to the drill bushing 2 30 in turn After drilling the axial hole 302 of the support sleeve 3, rotate the handle rod 14 to make the push rod 13 spirally move backward, the elastic deformation of the tension ring 10 is restored, and the four tension pins 9 are pushed to reset. The steel ball 16 pushes the moving pin 15 to move backward, and the tensioning ring 10 is completely retracted to the groove where the positioning shaft 6 is located. Compress the nut 7, take off the split washer 8, unload the support sleeve, and complete the processing of a support sleeve.

Claims (6)

1. A drilling fixture for supporting sleeve parts, including a machine tool connection seat (1) and a turntable (2), characterized in that: the machine tool connection seat (1) is rotatably connected to the turntable (2) above it, and the machine tool The rotational connection between the connecting seat (1) and the turntable (2) is provided with a circumferential positioning mechanism, and the upper surface of the middle disc of the turntable (2) is provided with a vertical plate (21) vertical to the upper surface of the turntable (2) , a positioning plate (4) is fixedly installed at the front center of the vertical plate (21), the front surface of the positioning plate (4) is provided with a vertical boss (41) protruding forward, and the left and right sides of the boss (41) Parallel to each other and perpendicular to the front surface of the positioning plate (4), the left and right sides of the boss (41) are used to cooperate with the vertical workpiece groove (303) in the middle of the workpiece to position the support sleeve circumferentially, and the positioning The front surface of the plate (4) is provided with a plane for fitting the rear end surface of the support sleeve (3), and the front left side of the vertical plate (21) is provided with a drill sleeve support plate (22) protruding forward , three drill sleeves one (5) are fixed on the drill sleeve support plate (22), and the fixed position of the drill sleeve one (5) is adapted to the three radial holes (301) to be processed on the left side of the processed support sleeve (3) , the threaded part set at the front end of the positioning shaft (6) is screwed with a compression nut (7), and the split washer (8) is set at the front end of the support sleeve (3); The middle part of the positioning shaft (6) is coaxially matched with the support sleeve (3) for radial positioning of the support sleeve (3). The rear end of the positioning shaft (6) is disc-shaped, and the positioning shaft (6) The disc-shaped front surface of the rear end is fixed on the rear side surface of the vertical plate (21); The vertical plate (21) is fixed with four drill sleeves 2 (30) whose axes are arranged along the front and rear directions. ) position, the disc at the rear end of the locating shaft and the locating plate (4) are provided with through holes in the front and rear direction at the appropriate position of the drill bushing 2 (30) to avoid the drill bit. 2. Drilling fixture for support sleeve parts according to claim 1, characterized in that: the structure in which the machine tool connection seat (1) is rotatably connected to the turntable (2) above it is: the turntable (2) The lower end is provided with a rotating shaft (29), and the rotating shaft (29) is rotationally connected with the machine tool connection seat (1) through the adjacent deep groove ball bearing one (20) and deep groove ball bearing two (28); the rotating shaft (29) passes through the upper Round nut 1 (17) and round nut 2 (18) screwed together with the shaft shoulder and the lower end fix the inner rings of deep groove ball bearing 1 (20) and deep groove ball bearing 2 (28), and the upper end of the machine tool connection seat (1) passes through The inner flange with a diameter smaller than the outer ring of the bearing and the bearing cover (19) at the lower end press the outer rings of the first deep groove ball bearing (20) and the second deep groove ball bearing (28), and the outer cylindrical surface of the lower end of the bearing cover (19) Threaded connection with the machine connection seat (1). 3. Drilling fixture for support sleeve parts according to claim 2, characterized in that: the rotational connection between the machine tool connection seat (1) and the turntable (2) is provided with a circumferential positioning mechanism structure as follows: The upper disc-shaped upper surface edge of the machine tool connection seat (1) is provided with an upwardly protruding stopper one (101) and a second stopper (102), and the lower surface edge of the middle disc of the turntable (2) A downwardly protruding block three (201) is provided at the position, and the block three (201) is located in the space between the block one (101) and the block two (102), and one side of the block three (201) is connected to Stopper 1 (101) contacts and rotates against stopper 2 (102), and the turntable (2) rotates within the range of 90 degrees. The disc-shaped lower surface edge of the upper part of the machine tool connection seat (1) is uniformly arranged in the circumferential direction. Two spring pins, radial pin holes (23) corresponding to the spring pins are arranged on the disk of the turntable (2), to realize the circumferential fixation between the machine tool connection seat (1) and the turntable (2). 4. The drilling fixture for bearing sleeve parts according to claim 3, characterized in that: four holes are uniformly arranged from the middle part of the positioning shaft (6) to the circumferential direction of the positioning plate (4) to the center of the positioning shaft (6). Each hole is equipped with a tensioning pin (9). The end of the tensioning pin (9) in the direction of the center of the positioning shaft (6) is a conical surface, and the conical surface is set in the center hole of the positioning shaft (6). The steel ball (16) is in contact with the tensioning pin (9), and the end surface of the outer cylindrical surface of the positioning shaft (6) is in contact with the tensioning ring (10). 10) Located in the annular groove opened on the outer cylindrical surface of the positioning shaft (6), the rear of the steel ball (16) in the center hole of the positioning shaft (6) is in contact with the moving pin (15), and the moving pin (15) is in contact with the positioning shaft ( The center hole of 6) is slidingly fitted, and the rear end of the moving pin (15) is in contact with the front end of the push rod (13). Threads are provided on the outer cylindrical surface from the middle of the push rod to the front end, and are fixed to the threaded tube fixed at the rear end of the positioning shaft (6). (12) internal threads are screwed together. 5. The jig for the drilling machine of the support sleeve part according to claim 4, characterized in that: the rear end of the push rod (13) is fixed with a handle rod (14) perpendicular to its axis. 6. The drilling machine fixture for supporting sleeve parts according to claim 5, characterized in that: the spring pin includes a pull ring (24), a pin shell (25), a spring (26), a pin shaft (27), and the pin shell of the spring pin (25) is fixed on the edge of the upper disc-shaped lower surface of the machine tool connection seat (1), the pull ring (24) passes through the radial hole opened at the lower end of the pin shaft (27) to connect with it, and the upper end of the spring (26) tops On the flange of the spring pin, the lower end is fixed on the concave step of the pin housing (25), and the lower end surface of the pin housing (25) is provided with an upward radially penetrating slot (251) for accommodating the Ring (24).