A directional clamping mechanism cooperating with an automatic feeding device of a numerically controlled lathe

Abstract

The present invention relates to the field of mechanical processing technology, and in particular to a directional clamping mechanism for use with an automatic feeding device of a CNC lathe. The mechanism comprises a support base, a bevel table fixedly mounted on the top of the support base, two mutually parallel first slide rails fixedly mounted on the top surface of the bevel table, a first movable seat slidably mounted on the first slide rails, a cylinder fixedly mounted on the top of the bevel table, the output end of the cylinder fixedly connected to the first movable seat, a translation assembly mounted on the top surface of the first movable seat, and a clamping assembly mounted on the translation assembly for positioning a workpiece. The present invention can ensure that a pin remains stable during machining, avoiding the problem of the pin end being offset.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing, in particular to a directional clamping mechanism matched with an automatic feeding device of a numerically controlled lathe. Background Art

[0002] When machining pin shaft parts, high precision and high efficiency are required. Therefore, on existing CNC lathes, automatic feeding devices and automatic clamping devices are often used to achieve automatic feeding and automatic clamping. The automatic clamping device achieves the purpose of automatic clamping through vertical and horizontal movements, effectively improving production efficiency and machining accuracy.

[0003] Existing Chinese patent publication number CN201820047517.X discloses “a directional clamping mechanism for use with an automatic feeding device of a CNC lathe, comprising an inclined base, a platform slidably mounted on the inclined base, a finger cylinder mounted on the platform, and a first chuck and a second chuck mounted on the finger cylinder. The inclined base has an inclined plate, and the platform is slidably mounted on the inclined plate via a slide cylinder. The inclination angle between the inclined plate and the CNC lathe worktable is equal to the inclination angle between the automatic feeding channel and the CNC lathe worktable.”

[0004] This patent sets up a sloped base, slides the installation platform on the inclined plate of the sloped base, and installs a finger cylinder on the platform. The finger cylinder drives the first chuck and the second chuck to clamp the pin to be processed; the first chuck and the second chuck of this patent mainly clamp one end of the processing pin, while the other end of the processing pin is in a suspended state, which makes it easy for the pin to deviate during actual processing, thereby affecting the processing quality of the pin. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcoming of the prior art that the pin shaft is easily offset, and to propose a directional clamping mechanism that cooperates with the automatic feeding device of a CNC lathe.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A directional clamping mechanism is designed to cooperate with the automatic feeding device of a CNC lathe, including a support seat, a bevel table is fixedly installed on the top of the support seat, two first slide rails parallel to each other are fixedly installed on the top surface of the bevel table, a first movable seat is slidably installed on the first slide rail, a cylinder is fixedly installed on the top of the bevel table, the output end of the cylinder is fixedly connected to the first movable seat, a translation assembly is installed on the top surface of the first movable seat, and a clamping assembly is installed on the translation assembly to position the workpiece.

[0008] Preferably, the translation assembly includes a second slide rail, a second movable seat, a rack, a first motor and a first gear; the second slide rail is fixedly mounted on the top surface of the first movable seat, the second movable seat is slidably mounted on the second slide rail, the rack is fixedly mounted on the outer side of the second movable seat, the first motor is fixedly mounted on the top surface of the first movable seat, and the first gear is fixedly mounted on the output shaft of the first motor and engages with the rack.

[0009] Preferably, a first sliding rod is fixedly installed on the end of the second movable seat, the first sliding rod passes through the side wall of the first movable seat and is slidably connected to the first movable seat, a first limit block is fixedly installed on the end of the first sliding rod away from the second movable seat, and a first spring is sleeved on the first sliding rod, and the first spring is located on the inner side of the first movable seat.

[0010] Preferably, the clamping assembly includes a bidirectional screw, two clamping seats, two third slide rails and a third motor; the two third slide rails are fixedly installed in parallel on the top surface of the second movable seat, the two clamping seats are respectively slidably installed at the two ends of the third slide rails, the bidirectional screw is rotatably installed on the inner side of the second movable seat, the two clamping seats are respectively threadedly connected to the two ends of the bidirectional screw, the third motor is fixedly installed on the outer side of the second movable seat, and the output shaft is fixedly connected to the bidirectional screw.

[0011] Preferably, a docking seat is fixedly mounted on the top of one of the clamping seats, and a docking block is fixedly mounted on the top of the other clamping seat, and the docking block matches the docking seat.

[0012] Preferably, a chuck member is installed at the end of each of the two clamping seats, and the chuck member includes a mounting plate, a second slide rod, an arc-shaped chuck, a second limit block and a second spring; the mounting plate is fixedly mounted on the end of the clamping seat, the second slide rod passes through the mounting plate and is slidably connected to the mounting plate, the arc-shaped chuck is fixedly mounted on one end of the second slide rod, the second limit block is fixedly mounted on the other end of the second slide rod, and the second spring is sleeved on the second slide rod and is located on the inner side of the mounting plate.

[0013] Preferably, a guide assembly is fixedly installed at one end of the first movable seat, and the guide assembly includes two fixed rods, a fixed ring, a rotating cylinder, a plurality of third sliding rods, a plurality of guide plates, a plurality of third limit blocks and a plurality of third springs; one end of the two fixed rods is fixedly connected to the first movable seat, and the other end of the two fixed rods is fixedly connected to the fixed ring, and the rotating cylinder is rotatably installed on the inner side of the fixed ring, and the plurality of third sliding rods pass through the rotating cylinder and are slidably connected to the rotating cylinder, and the plurality of third sliding rods are equidistantly distributed around the rotating cylinder, and the plurality of guide plates are fixedly installed at one end of the corresponding third sliding rods, and the plurality of third limit blocks are fixedly installed at the other end of the third sliding rod, and the plurality of third springs are sleeved on the corresponding third springs.

[0014] Preferably, the guide assembly also includes an adjusting member, which includes a ring gear, a fourth motor and a second gear; the ring gear is fixedly mounted on the end of the rotating cylinder, the fourth motor is fixedly mounted on the fixed ring, and the second gear is fixedly mounted on the output shaft of the fourth motor and meshes with the ring gear.

[0015] The invention proposes a directional clamping mechanism that cooperates with the automatic feeding device of a CNC lathe. The beneficial effect is that the other end of the pin of the invention is supported by multiple guide plates. Under the action of the third spring, the guide plates are completely fitted with the pin, thereby ensuring that the pin remains stable during the processing and avoiding the problem of the end of the pin being offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a directional clamping mechanism proposed by the present invention that cooperates with an automatic feeding device of a CNC lathe;

[0017] Figure 2 This is a structural schematic diagram of a translation assembly of a directional clamping mechanism that cooperates with an automatic feeding device of a CNC lathe proposed by the present invention;

[0018] Figure 3 This is a structural schematic diagram of a clamping assembly of a directional clamping mechanism that cooperates with an automatic feeding device of a CNC lathe proposed by the present invention;

[0019] Figure 4 This is a structural schematic diagram of a chuck component of a directional clamping mechanism that cooperates with an automatic feeding device of a CNC lathe proposed by the present invention;

[0020] Figure 5 This is a structural schematic diagram of a guide assembly of a directional clamping mechanism that cooperates with an automatic feeding device of a CNC lathe proposed by the present invention.

[0021] In the figure: support base 1, inclined table 2, first slide rail 3, first movable seat 4, cylinder 5, translation assembly 6, second slide rail 62, second movable seat 63, rack 64, first motor 65, first gear 66, first slide rod 67, first limit block 68, first spring 69, clamping assembly 7, bidirectional screw 71, clamping base 72, third slide rail 73, third motor 74, docking base 75, docking block 76, chuck member 77, mounting plate 771, second slide rod 772, arc chuck 773, second limit block 774, second spring 775, guide assembly 8, fixing rod 81, fixing ring 82, rotating cylinder 83, third slide rod 84, guide plate 85, third limit block 86, third spring 87, adjusting member 88, gear ring 881, fourth motor 882, second gear 883. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1:

[0024] Reference Figure 1-4 A directional clamping mechanism matched with the automatic feeding device of a CNC lathe includes a support base 1, a bevel table 2 is fixedly installed on the top of the support base 1, two first slide rails 3 parallel to each other are fixedly installed on the top surface of the bevel table 2, a first movable seat 4 is slidably installed on the first slide rail 3, a cylinder 5 is fixedly installed on the top of the bevel table 2, the output end of the cylinder 5 is fixedly connected to the first movable seat 4, a translation component 6 is installed on the top surface of the first movable seat 4, and a clamping component 7 is installed on the translation component 6 to position the workpiece.

[0025] The translation assembly 6 includes a second slide rail 62, a second movable seat 63, a rack 64, a first motor 65, and a first gear 66. The second slide rail 62 is fixedly mounted on the top surface of the first movable seat 4, the second movable seat 63 is slidably mounted on the second slide rail 62, the rack 64 is fixedly mounted on the outside of the second movable seat 63, the first motor 65 is fixedly mounted on the top surface of the first movable seat 4, and the first gear 66 is fixedly mounted on the output shaft of the first motor 65 and meshes with the rack 64. A first slide bar 67 is fixedly mounted on the end of the second movable seat 63. The first slide bar 67 passes through the side wall of the first movable seat 4 and is slidably connected to the first movable seat 4. A first limit block 68 is fixedly mounted on the end of the first slide bar 67 away from the second movable seat 63. A first spring 69 is sleeved on the first slide bar 67 and is located on the inner side of the first movable seat 4. The first spring 69 is used to ensure the smooth sliding of the second movable seat 63 and prevent the second movable seat 63 from damaging the inner wall of the first movable seat 4.

[0026] The clamping assembly 7 includes a bidirectional screw 71, two clamping seats 72, two third slide rails 73 and a third motor 74; the two third slide rails 73 are fixedly mounted in parallel on the top surface of the second movable seat 63, the two clamping seats 72 are slidably mounted on the two ends of the third slide rail 73, the bidirectional screw 71 is rotatably mounted on the inner side of the second movable seat 63, the two clamping seats 72 are respectively threadedly connected to the two ends of the bidirectional screw 71, the third motor 74 is fixedly mounted on the outer side of the second movable seat 63, and the output shaft is fixedly connected to the bidirectional screw 71; a docking seat 75 is fixedly mounted on the top of one of the clamping seats 72, and a docking block 76 is fixedly mounted on the top of the other clamping seat 72, and the docking block 76 matches the docking seat 75.

[0027] The ends of the two clamping seats 72 are both equipped with a clamping member 77, and the clamping member 77 includes a mounting plate 771, a second slide rod 772, an arc-shaped clamping member 773, a second limit block 774 and a second spring 775; the mounting plate 771 is fixedly mounted on the end of the clamping seat 72, the second slide rod 772 passes through the mounting plate 771 and is slidably connected to the mounting plate 771, the arc-shaped clamping member 773 is fixedly mounted on one end of the second slide rod 772, the second limit block 774 is fixedly mounted on the other end of the second slide rod 772, and the second spring 775 is sleeved on the second slide rod 772 and is located on the inner side of the mounting plate 771.

[0028] Working Principle: First, the pin is placed between the two arc-shaped clamps 773. Then, the third motor 74 is started to rotate the bidirectional screw 71, which causes the two clamping seats 72 to slide toward each other along the third slide rail 73. This also causes the two arc-shaped clamps 773 to move toward each other and clamp one end of the pin. The second spring 775 can provide a buffering elastic force to effectively prevent the arc-shaped clamps 773 from clamping the pin with excessive force and causing damage.

[0029] By controlling the cylinder 5 to make the first movable seat 4 move along the first slide rail 3, the position of the pin shaft on the inclined table 2 can be adjusted to meet the actual processing position; then starting the first motor 65 to make the first gear 66 rotate, so that the rack 64 drives the second movable seat 63 to move horizontally, and the horizontal position of the pin shaft can be changed to meet the actual processing position; the whole process can stably fix the pin shaft, which is convenient for the processing of the pin shaft.

[0030] Example 2:

[0031] Reference Figure 1-5 As another preferred embodiment of the present invention, the difference from Example 1 is that a guide mechanism 8 is fixedly installed at one end of the first movable seat 4, and the guide mechanism 8 includes two fixed rods 81, a fixed ring 82, a rotating cylinder 83, a plurality of third slide rods 84, a plurality of guide plates 85, a plurality of third limit blocks 86, a plurality of third springs 87 and an adjusting member 88; one end of the two fixed rods 81 is fixedly connected to the first movable seat 4, the other end of the two fixed rods 81 is fixedly connected to the fixed ring 82, the rotating cylinder 83 is rotatably installed on the inner side of the fixed ring 82, the plurality of third slide rods 84 all penetrate the rotating cylinder 83 and are slidably connected to the rotating cylinder 83, the plurality of third slide rods 84 are equidistantly distributed around the rotating cylinder 83, the plurality of guide plates 85 are fixedly installed at one end of the corresponding third slide rods 84, the plurality of third limit blocks 86 are fixedly installed at the other end of the third slide rod 84, and the plurality of third springs 87 are sleeved on the corresponding third springs 87;

[0032] The adjusting member 88 includes a ring gear 881, a fourth motor 882 and a second gear 883; the ring gear 881 is fixedly mounted on the end of the rotating cylinder 83, the fourth motor 882 is fixedly mounted on the fixed ring 82, and the second gear 883 is fixedly mounted on the output shaft of the fourth motor 882 and meshes with the ring gear 881.

[0033] When one end of the pin is clamped by the two arc-shaped chucks 773, the other end of the pin is supported by multiple guide plates 85. Under the action of the third spring 87, the guide plate 85 is completely fitted with the pin, thereby ensuring that the pin remains stable during the processing and avoiding the problem of the end of the pin being offset; the second gear 883 is driven to rotate by the fourth motor 882, so that the ring gear 881 drives the rotating cylinder 83 to rotate, and then the guide plate 85 drives the pin to rotate to adjust the processing position of the pin.

[0034] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A directional clamping mechanism for cooperating with an automatic feeding device of a CNC lathe, comprising a support base (1), a top of which is fixedly mounted an inclined table (2), characterized in that: Two mutually parallel first slide rails (3) are fixedly mounted on the top surface of the inclined table (2), a first movable seat (4) is slidably mounted on the first slide rails (3), a cylinder (5) is fixedly mounted on the top of the inclined table (2), an output end of the cylinder (5) is fixedly connected to the first movable seat (4), a translation assembly (6) is mounted on the top surface of the first movable seat (4), and a clamping assembly (7) is mounted on the translation assembly (6) to position the workpiece; The translation assembly (6) includes a second slide rail (62), a second movable seat (63), a rack (64), a first motor (65) and a first gear (66); the second slide rail (62) is fixedly mounted on the top surface of the first movable seat (4), the second movable seat (63) is slidably mounted on the second slide rail (62), the rack (64) is fixedly mounted on the outside of the second movable seat (63), the first motor (65) is fixedly mounted on the top surface of the first movable seat (4), and the first gear (66) is fixedly mounted on the output shaft of the first motor (65) and meshes with the rack (64); The clamping assembly (7) includes a bidirectional screw (71), two clamping seats (72), two third slide rails (73) and a third motor (74); the two third slide rails (73) are fixedly mounted in parallel on the top surface of the second movable seat (63), the two clamping seats (72) are slidably mounted on the two ends of the third slide rails (73), the bidirectional screw (71) is rotatably mounted on the inner side of the second movable seat (63), the two clamping seats (72) are respectively threadedly connected to the two ends of the bidirectional screw (71), the third motor (74) is fixedly mounted on the outer side of the second movable seat (63), and the output shaft is fixedly connected to the bidirectional screw (71); The ends of the two clamping seats (72) are both equipped with a clamping head (77), and the clamping head (77) includes a mounting plate (771), a second slide bar (772), an arc-shaped clamping head (773), a second limit block (774) and a second spring (775); the mounting plate (771) is fixedly mounted on the end of the clamping seat (72), the second slide bar (772) passes through the mounting plate (771) and is slidably connected to the mounting plate (771), the arc-shaped clamping head (773) is fixedly mounted on one end of the second slide bar (772), the second limit block (774) is fixedly mounted on the other end of the second slide bar (772), and the second spring (775) is sleeved on the second slide bar (772) and is located on the inner side of the mounting plate (771); A guide assembly (8) is fixedly mounted on one end of the first movable seat (4), and the guide assembly (8) includes two fixed rods (81), a fixed ring (82), a rotating cylinder (83), a plurality of third sliding rods (84), a plurality of guide plates (85), a plurality of third limit blocks (86) and a plurality of third springs (87); one end of the two fixed rods (81) is fixedly connected to the first movable seat (4), the other end of the two fixed rods (81) is fixedly connected to the fixed ring (82), and the rotating cylinder ( 83) is rotatably mounted on the inner side of the fixed ring (82), a plurality of third slide bars (84) all pass through the rotating cylinder (83) and are slidably connected to the rotating cylinder (83), a plurality of the third slide bars (84) are equidistantly distributed around the rotating cylinder (83), a plurality of the guide plates (85) are fixedly mounted on one end of the corresponding third slide bars (84), a plurality of the third limit blocks (86) are fixedly mounted on the other end of the third slide bars (84), and a plurality of the third springs (87) are sleeved on the corresponding third springs (87).

2. The directional clamping mechanism matched with the automatic feeding device of a CNC lathe according to claim 1 is characterized in that: A first slide bar (67) is fixedly mounted on the end of the second movable seat (63), the first slide bar (67) passes through the side wall of the first movable seat (4) and is slidably connected to the first movable seat (4), a first limit block (68) is fixedly mounted on one end of the first slide bar (67) away from the second movable seat (63), a first spring (69) is sleeved on the first slide bar (67), and the first spring (69) is located on the inner side of the first movable seat (4).

3. The directional clamping mechanism matched with the automatic feeding device of a CNC lathe according to claim 2, characterized in that: A docking seat (75) is fixedly mounted on the top of one of the clamping seats (72), and a docking block (76) is fixedly mounted on the top of the other clamping seat (72), wherein the docking block (76) matches the docking seat (75).

4. The directional clamping mechanism matched with the automatic feeding device of a CNC lathe according to claim 3 is characterized in that: The guide assembly (8) further includes an adjusting member (88), the adjusting member (88) including a ring gear (881), a fourth motor (882) and a second gear (883); the ring gear (881) is fixedly mounted on the end of the rotating cylinder (83), the fourth motor (882) is fixedly mounted on the fixed ring (82), and the second gear (883) is fixedly mounted on the output shaft of the fourth motor (882) and meshes with the ring gear (881).

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