Quick-release grinding head clamp for universal grinding machine

Abstract

The utility model discloses a quick-release grinding head clamp for a universal grinding machine. The quick-release grinding head clamp comprises a clamp body, a buckle lock rod, a buckle spring, a buckle wheel carrier and a universal grinding head, a grinding machine connecting part is arranged at the lower end of the clamp body and fixedly connected with a grinding head chuck of a grinding machine. A hollow polygonal hole is formed in the center of the upper end of the clamp body; a plurality of lock rod sliding grooves are formed in the outer edge of the hollow polygonal hole, and buckle lock rods and buckle springs are arranged in the lock rod sliding grooves; the clamping and locking wheel frame is coupled to the upper part of the buckle locking rod; the buckle lock rod is supported towards the direction of the central shaft through the buckle spring; the universal grinding head comprises a grinding head rod body and a grinding head, and the grinding head rod body and the grinding head are integrally connected; the grinding head rod body can be hooped and fixed in the buckle locking rod; in a static state, the buckle locking rod is kept in a hoop locking state, the universal grinding head can be quickly disassembled by axially shifting the clamping and locking wheel frame, and the universal grinding head replacing speed is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical grinding processing, and in particular relates to a quick-detachable grinding head fixture for a universal grinder. Background Art

[0002] External cylindrical grinding, also known as grinding head, is mainly carried out on external cylindrical grinding machines to grind the outer cylinder, outer cone and shoulder end faces of shaft workpieces. During grinding, the workpiece rotates at a low speed. If the workpiece simultaneously makes longitudinal reciprocating movements and the grinding wheel makes a transverse feed relative to the workpiece after each single or double stroke of the longitudinal movement, it is called the longitudinal grinding method.

[0003] At present, high-precision universal grinding machines are often used to grind workpieces when processing external cones. During the grinding process, the workpiece is mainly processed by the grinding head. At present, the grinding head is generally fixed by bolts during grinding. It is not convenient to disassemble the grinding head during use, resulting in the need for staff to disassemble multiple bolts, affecting the replacement speed of the grinding head and thus affecting the processing efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and to provide a quick-release grinding head fixture for a universal grinder.

[0005] A quick-release grinding head fixture and a universal grinding head for a universal grinder, comprising: a fixture body 1, a buckle lock rod 2, a buckle spring 3, a buckle wheel frame 4, and a universal grinding head 5; a grinder connecting portion 11 is provided at the lower end of the fixture body 1, and the grinder connecting portion 11 is connected and fixed to the grinding head chuck on the existing grinder; a hollow multi-faceted hole 12 is provided at the center of the upper end of the fixture body 1; 8 locking rod sliding grooves 13 with the same structure are arranged in an equidistant array along the sides of the hollow multi-faceted hole 12 on the fixture body 1; each locking rod sliding groove 13 is provided with a plurality of locking rods, each of which ... A snap lock rod 2 and a snap spring 3 are provided in the groove 13; the upper ends of the eight snap lock rods 2 are supported toward the central axis by eight snap springs 3; a lock wheel sliding portion 14 is provided above the hollow multi-faceted hole 12, and the lock wheel frame 4 is axially connected to the lock wheel sliding portion 14; the lower end of the snap lock rod 2 is axially connected to the lower part of the lock rod sliding groove 13; the universal grinding head includes a grinding head rod body 51 and a grinding head 52, and the grinding head rod body 51 and the grinding head 52 are integrally connected; the grinding head rod body 51 can be clamped and fixed in the eight snap lock rods 2.

[0006] Axial holes 131 are provided on both sides of the lower end of the lock rod sliding groove 13; a lock rod shaft 21 is provided at the lower end of the buckle lock rod 2, and the lock rod shaft 21 is axially connected in the shaft connection hole 131; a spring limit pin 132 is provided at the bottom of the lock rod sliding groove 13; the lower end of the buckle spring 3 is sleeved on the spring limit pin 132; a spring upper abutment 26 is provided on the upper rear side of the buckle lock rod 2; the upper end of the buckle spring 3 abuts against the spring upper abutment 26.

[0007] A pressure rod 22 is provided at the front end below the snap lock rod 2, and a pressure rod flange 221 is provided at the front end of the pressure rod 22; an angular fitting portion 23 is provided on the inner vertical surface of the snap lock rod 2; a lock rod hook 24 is provided above the angular fitting portion 23; the inner diameter of the lock rod hook 24 is smaller than the inner diameter of the angular fitting portion 23; a toggle flange 25 is provided on the top of the snap lock rod 2.

[0008] The bracket of the locking wheel frame 4 is annular, and a toggle wheel 41 is arranged in an equidistant array below the locking wheel frame 4; a plurality of sliding flanges 42 are arranged above the locking wheel frame 4, and the centers of the plurality of sliding flanges 42 coincide with the center of the locking wheel frame 4; the sliding flange 42 slides in the locking wheel sliding portion 14; a lever limiting sliding portion 15 is arranged on both sides above the locking wheel sliding portion 14; the connection between the lever 43 and the locking wheel frame 4 slides at the lever limiting sliding portion 15.

[0009] The locking wheel frame 4 is provided with two levers 43 , and the ends of the levers 43 are provided with lever handles 431 .

[0010] The lower end of the grinding head rod 51 is an octagonal grinding head lower rod 511 ; the upper part of the grinding head rod 51 is an optical axis rod 512 ; the corner fitting portion 23 and the corner of the octagonal grinding head lower rod 511 are adapted to each other.

[0011] The polishing head 52 is provided with a plurality of polishing surfaces, and polishing silicon carbide is attached to the plurality of polishing surfaces.

[0012] The grinding surfaces on the grinding head 52 are respectively a first grinding surface 521, a second grinding surface 522, a third grinding surface 523, and a fourth grinding surface 524; the first grinding surface 521 is perpendicular to the axis of the grinding head rod 51; the second grinding surface 522 is arranged on the outer edge of the first grinding surface 521 and forms a negative angle of 30 degrees; the third grinding surface 523 is arranged on the outer edge of the second grinding surface 522 and forms a negative angle of 30 degrees; the fourth grinding surface 524 is arranged on the inner side of the first grinding surface 521 and forms a negative angle of 45 degrees.

[0013] The present technical scheme provides a quick-release grinding head clamp and a universal grinding head for a universal grinder, which comprises: a clamp body, a snap lock rod, a snap spring, a snap wheel frame, and a universal grinding head; a grinder connecting part is provided at the lower end of the clamp body, and the grinder connecting part is connected and fixed to the grinding head chuck of the grinder; a hollow multi-faceted hole is provided at the center of the upper end of the clamp body; a plurality of locking rod sliding grooves are provided on the outer edge of the hollow multi-faceted hole, and snap lock rods and snap springs are provided in the locking rod sliding grooves; the snap lock wheel frame is axially connected above the snap lock rod; the snap lock rod is supported toward the central axis direction by the snap spring; the universal grinding head comprises a grinding head rod body and a grinding head, and the grinding head rod body and the grinding head are connected as a whole; the grinding head rod body can be clamped and fixed in the snap lock rod; the snap lock rod keeps the clamp locked in a static state, and the universal grinding head can be quickly disassembled by axially toggling the snap lock wheel frame, thereby improving the speed of replacing the universal grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the connection state between a quick-release grinding head fixture and a universal grinding head for a universal grinding machine of the utility model;

[0015] Figure 2 It is a partial cross-sectional structural schematic diagram of a quick-release grinding head fixture for a universal grinder in a locked state according to the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a fixture body of a quick-detachable grinding head fixture for a universal grinder of the utility model;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of a quick-release grinding head fixture for a universal grinder in an unlocked state according to the utility model;

[0018] Figure 5 This is a schematic diagram of the buckle rod structure of a quick-release grinding head fixture for a universal grinder of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of a locking wheel frame of a quick-release grinding head fixture for a universal grinder of the utility model;

[0020] Figure 7 The utility model is a structural schematic diagram of a quick-detachable universal grinding head of a quick-detachable grinding head fixture for a universal grinder. DETAILED DESCRIPTION

[0021] The technical solution will be further described clearly and completely below in conjunction with the accompanying drawings. The quick-release grinding head fixture for a universal grinder described in this technical solution is a quick-release component that adds convenient grinding head disassembly to the existing grinder. The described embodiments are only part of the technical solution, not all of the embodiments. Based on this technical solution, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this utility model.

[0022] Example 1 A quick-release grinding head fixture for a universal grinder

[0023] See also Figures 1 to 4 As shown, a quick-release grinding head fixture for a universal grinder comprises: a fixture body 1, a buckle lock rod 2, a buckle spring 3, and a buckle wheel frame 4;

[0024] The lower end of the fixture body 1 is provided with a grinder connection part 11; the grinder connection part 11 is an 8-prism body, and teeth are provided on the outer facade of the 8-prism body of the grinder connection part 11; the grinder connection part 11 is connected and fixed to the grinding head chuck on the existing grinder; the teeth on the outer facade of the prism body can increase the locking bite force with the grinding head chuck;

[0025] A hollow multi-faceted hole 12 is provided at the center of the upper end of the clamp body 1; eight locking rod sliding grooves 13 are arranged in an equidistant array along the sides of the hollow multi-faceted hole 12 on the clamp body 1; the eight locking rod sliding grooves 13 have the same structure; a locking wheel sliding portion 14 is provided above the hollow multi-faceted hole 12, and lever limiting sliding portions 15 are provided on both sides above the locking wheel sliding portion 14;

[0026] There are eight buckle lock rods 2 and buckle springs 3; the eight buckle lock rods 2 have the same structure, and the eight buckle springs 3 have the same structure; the eight lock rod sliding grooves 13 are each provided with a buckle lock rod 2 and a buckle spring 3;

[0027] Axial holes 131 are provided on both sides of the lower end of the lock rod sliding groove 13; a lock rod shaft 21 is provided at the lower end of the buckle lock rod 2, and the lock rod shaft 21 is axially connected to the shaft connection hole 131; a spring stop pin 132 is provided at the bottom of the lock rod sliding groove 13; the lower end of the buckle spring 3 is sleeved on the spring stop pin 132;

[0028] A pressure rod 22 is provided at the front end below the snap lock rod 2, and a pressure rod flange 221 is provided at the front end of the pressure rod 22; the inner side elevation of the snap lock rod 2 is an angular fitting portion 23 that fits with the corner of the 8-prism; above the angular fitting portion 23 is a lock rod hook 24; the inner diameter of the lock rod hook 24 is smaller than the inner diameter of the angular fitting portion 23; a toggle flange 25 is provided at the top of the snap lock rod 2; the inner side elevation of the toggle flange 25 is arc-shaped; a spring upper abutment 26 is provided on the upper rear side of the snap lock rod 2; the upper end of the snap spring 3 abuts against the spring upper abutment 26.

[0029] The bracket of the locking wheel frame 4 is annular, and a toggle wheel 41 is arranged in an equidistant array below the locking wheel frame 4; a plurality of sliding flanges 42 are arranged above the locking wheel frame 4, and the centers of the plurality of sliding flanges 42 coincide with the center of the locking wheel frame 4; the sliding flange 42 slides in the locking wheel sliding portion 14; two toggle rods 43 are arranged on the locking wheel frame 4, and a toggle rod handle 431 is arranged at the end of the toggle rod 43; the connection between the toggle rod 43 and the locking wheel frame 4 slides at the toggle rod limiting sliding portion 15.

[0030] Example 2 A quick-release universal grinding head

[0031] See also Figure 5 As shown, a quick-release universal grinding head is a universal grinding head that can be connected to a quick-release grinding head fixture for a universal grinder described in Example 1 in a quick-release manner.

[0032] The universal grinding head comprises: a grinding head rod body 51 and a grinding head 52, wherein the grinding head rod body 51 and the grinding head 52 are connected in one piece or connected by bolts; the lower end of the grinding head rod body 51 is an octagonal prism grinding head lower rod body 511; the upper part of the grinding head rod body 51 is an optical axis rod body 512; the octagonal prism grinding head lower rod body 511 and the optical axis rod body 512 are formed in one piece;

[0033] The diameter of the optical axis rod body 512 is the same as the diameter of the locking rod hook 24;

[0034] The lower rod body 511 of the octagonal grinding head can be embedded in the hollow multi-prism hole 12; the 8 vertical surfaces in the hollow multi-prism hole 12 are transitionally matched with the 8 end surfaces of the lower rod body 511 of the octagonal grinding head; the locking rod hooks 24 of the 8 snap lock rods 2 can clamp and fix the 8 corners of the octagonal rod body.

[0035] The grinding head 52 is a component that rotates along the grinding head rod body. The grinding head 52 is provided with multiple grinding surfaces, and the multiple grinding surfaces are attached with silicon carbide for grinding. The multiple grinding surfaces are different in grinding fineness; the specific grinding fineness can be customized according to needs.

[0036] The grinding surfaces on the grinding head 52 are respectively a first grinding surface 521, a second grinding surface 522, a third grinding surface 523, and a fourth grinding surface 524; the first grinding surface 521 is perpendicular to the axis of the grinding head rod 51; the second grinding surface 522 is arranged at the outer edge of the first grinding surface 521; the second grinding surface 522 and the first grinding surface 521 form a negative angle of 30 degrees; the second grinding surface 522 and the third grinding surface 523 form a negative angle of 30 degrees; the fourth grinding surface 524 is arranged on the inner side of the first grinding surface 521, and the fourth grinding surface 524 and the first grinding surface 521 form a negative angle of 45 degrees;

[0037] That is, the angle between the first grinding surface 521 and the second grinding surface 522 and the angle between the second grinding surface 522 and the third grinding surface 523 can grind the workpiece at an angle of 150 degrees; the angle between the first grinding surface 521 and the fourth grinding surface 524 can grind the workpiece at an angle of 135 degrees.

[0038] Connection method of quick-release grinding head fixture and universal grinding head

[0039] Referring to Examples 1 and 2, the grinding head rod body 51 provided on the universal grinding head can be fixed by a clamp of the snap lock rod 2 in the quick-release grinding head fixture; the bottom end surface of the octagonal prism grinding head lower rod body 511 is against the pressure rod flange 221; the angular fitting portion 23 and the corner of the octagonal prism grinding head lower rod body 511 fit each other; the locking wheel frame 4 is axially rotated, and the 8 toggle wheels 41 on the locking wheel frame 4 push the 8 toggle flanges 25 outward at the same time, and the snap lock rod 2 is flipped outward; the clamp fixation of the grinding head rod body 51 is released.

Claims

1. A quick-release grinding head fixture for a universal grinder, comprising: A clamp body (1), a snap lock rod (2), a snap spring (3), a snap wheel frame (4), and a universal grinding head (5); a grinder connecting portion (11) is provided at the lower end of the clamp body (1), and the grinder connecting portion (11) is connected and fixed to the grinding head chuck on the existing grinding machine; it is characterized in that: a hollow multi-faceted hole (12) is provided at the center of the upper end of the clamp body (1); 8 locking rod sliding grooves (13) with the same structure are arranged in an equidistant array along the side of the hollow multi-faceted hole (12) on the clamp body (1); a snap lock rod ( 2) and a snap spring (3); the upper ends of the eight snap lock rods (2) are supported in the direction of the central axis by the eight snap springs (3); a lock wheel sliding portion (14) is provided above the hollow multi-faceted hole (12), and the lock wheel frame (4) is axially connected to the lock wheel sliding portion (14); the lower end of the snap lock rod (2) is axially connected to the lower part of the lock rod sliding groove (13); the universal grinding head comprises a grinding head rod body (51) and a grinding head (52), and the grinding head rod body (51) and the grinding head (52) are connected as a whole; the grinding head rod body (51) can be clamped and fixed in the eight snap lock rods (2).

2. The quick-release grinding head fixture for a universal grinder according to claim 1, characterized in that: Axial holes (131) are provided on both sides of the lower end of the lock rod sliding groove (13); a lock rod shaft (21) is provided at the lower end of the buckle lock rod (2), and the lock rod shaft (21) is axially connected to the shaft connection hole (131); a spring stop pin (132) is provided at the bottom of the lock rod sliding groove (13); the lower end of the buckle spring (3) is sleeved on the spring stop pin (132); a spring upper abutment (26) is provided on the upper rear side of the buckle lock rod (2); and the upper end of the buckle spring (3) abuts against the spring upper abutment (26).

3. The quick-release grinding head fixture for a universal grinder according to claim 2, characterized in that: A pressure rod (22) is provided at the front end below the snap lock rod (2), and a pressure rod flange (221) is provided at the front end of the pressure rod (22); an angular fitting portion (23) is provided on the inner vertical surface of the snap lock rod (2); a lock rod hook (24) is provided above the angular fitting portion (23); the inner diameter of the lock rod hook (24) is smaller than the inner diameter of the angular fitting portion (23); and a toggle flange (25) is provided at the top of the snap lock rod (2).

4. The quick-release grinding head fixture for a universal grinder according to claim 3, characterized in that: The bracket of the locking wheel frame (4) is annular, and a toggle wheel (41) is arranged in an equidistant array below the locking wheel frame (4); a plurality of sliding flanges (42) are arranged above the locking wheel frame (4), and the center of the plurality of sliding flanges (42) coincides with the center of the locking wheel frame (4); the sliding flanges (42) slide in the locking wheel sliding portion (14); a toggle lever limiting sliding portion (15) is arranged on both sides above the locking wheel sliding portion (14); and the connecting portion between the toggle lever (43) and the locking wheel frame (4) slides at the toggle lever limiting sliding portion (15).

5. The quick-release grinding head fixture for a universal grinder according to claim 4, characterized in that: Two shifting rods (43) are arranged on the locking wheel frame (4), and shifting rod handles (431) are arranged at the ends of the shifting rods (43).

6. The quick-release grinding head fixture for a universal grinder according to claim 5, characterized in that: The lower end of the grinding head rod body (51) is an octagonal grinding head lower rod body (511); the upper part of the grinding head rod body (51) is an optical axis rod body (512); the angular fitting portion (23) and the corner of the octagonal grinding head lower rod body (511) are mutually adapted; the shaft diameter of the optical axis rod body (512) is the same as the diameter of the locking rod hook (24).

7. The quick-release grinding head fixture for a universal grinder according to claim 6, characterized in that: The grinding head (52) is provided with a plurality of grinding surfaces, and silicon carbide for grinding is attached to the plurality of grinding surfaces.

8. The quick-release grinding head fixture for a universal grinder according to claim 7, characterized in that: The grinding surfaces on the grinding head (52) include a first grinding surface (521), a second grinding surface (522), a third grinding surface (523), and a fourth grinding surface (524); the first grinding surface (521) is perpendicular to the axis of the grinding head rod (51); the second grinding surface (522) is arranged on the outer edge of the first grinding surface (521) and forms a negative angle of 30 degrees; the third grinding surface (523) is arranged on the outer edge of the second grinding surface (522) and forms a negative angle of 30 degrees; and the fourth grinding surface (524) is arranged on the inner side of the first grinding surface (521) and forms a negative angle of 45 degrees.

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