Reaming device for press machine

Abstract

The utility model relates to the technical field of press machines, and discloses a broaching device for a press machine, which comprises a machine head and a broaching drill bit, one end of the machine head is provided with a pressing block, the inner side of the pressing block is fixedly connected with a threaded rod, one end of the threaded rod is in threaded connection with a sleeve, and one end of the sleeve is fixedly connected with a gear. The two ends of the gear are connected with two racks in a meshed mode, one ends of the two racks are fixedly connected with two connecting rods, one ends of the two connecting rods are fixedly connected with two inserting blocks, the two inserting blocks are connected to the two ends of the prism block in an inserted mode, and by pressing a pressing block, the pressing block drives a threaded rod to move towards the interior of a sleeve; the threaded rod moves to drive the sleeve to rotate, the sleeve drives the gear to rotate, the gear rotates to drive the rack to move, the rack drives the connecting rod and the inserting block to move, one end of the inserting block is separated from the interior of the prism block, and therefore the reamer bit can be conveniently taken down to be replaced and overhauled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a press machine technical field, concretely is a reaming device for press machine. BACKGROUND

[0002] The press machine transmits power to the sliding block through various transmission modes, so that the sliding block exerts pressure on the workpiece, thereby realizing forming, stamping, forging and other machining operations on the material. Common transmission modes include mechanical transmission, hydraulic transmission and pneumatic transmission.

[0003] The press machine is applied to stamping, forging and press fitting processes of automobile bodies, engine parts, chassis parts and the like, such as stamping forming of automobile cover parts, die casting of engine cylinder blocks, forging of wheel hubs and the like. In mechanical manufacturing, various mechanical parts can be formed, straightened, riveted and the like, such as hot-press forming of gears, straightening of shaft parts, riveting assembly of mechanical parts and the like.

[0004] In the field of automobile manufacturing, various installation holes, oil channel holes and the like of different diameters are provided on engine cylinder blocks, transmission housings and other parts. The press machine itself can be mainly used for basic processes such as stamping and forming, but for some cases requiring accurate expansion of the hole diameter, the reaming device can play a role, so that the press machine can adapt to diversified hole diameter processing requirements, avoid the purchase of multiple special equipment for different hole diameters, and reduce production costs.

[0005] According to the existing related technology, the inventor believes that the following defects exist: After a long reaming process, factors such as wear of the tool, vibration of the press machine and unevenness of the workpiece material will cause the hole diameter after reaming to deviate. The reaming device is generally fixedly installed on the press machine, which makes it inconvenient to repair and replace the reaming device. UTILITY MODEL CONTENTS

[0006] To solve the technical problems that in the existing reaming process, factors such as wear of the tool, vibration of the press machine and unevenness of the workpiece material will cause the hole diameter after reaming to deviate, and the reaming device is generally fixedly installed on the press machine, which makes it inconvenient to repair and replace the reaming device, the utility model provides a reaming device for a press machine.

[0007] The utility model discloses the following technical scheme realizes: a reaming device for press, including the head and reaming drill bit, the bottom processing of head has the prism groove, the top fixed type connection of reaming drill bit has the prism block, the prism block plug -in type connection is in the inside of prism groove, the one end of head is provided with the pressing block, the inside fixed type connection of pressing block has the threaded rod, the one end screw -thread type connection of threaded rod has the sleeve, the one end fixed type connection of sleeve has the gear, the both ends of gear are engaged type connection with two racks, the one end fixed type connection of two racks has two connecting rods, the one end fixed type connection of two connecting rods has two insert blocks, two insert blocks are respectively plug -in type connection in both ends of prism block.

[0008] Preferably, both ends of the prism block are machined with two insertion grooves, and the two insertion blocks are respectively plug-in type connected in the interiors of the two insertion grooves.

[0009] Preferably, the interior of the sleeve is provided with a reset spring, and one end of the reset spring is in contact type connection with one end of the threaded rod.

[0010] Preferably, the interior of the head is machined with a rotating groove, and the sleeve is rotatably connected in the interior of the rotating groove.

[0011] Preferably, the interior of the head is machined with two movable grooves, and the racks are movably connected in the interiors of the movable grooves.

[0012] Preferably, one end of the movable groove is machined with a connecting groove, and the connecting rod is movably connected in the interior of the connecting groove.

[0013] Preferably, one end of the connecting groove is machined with a groove, and the insert block is movably connected in the interior of the groove.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] When the utility model is used, by pressing the pressing block, the pressing block will drive the threaded rod to move in the interior of the sleeve, the movement of the threaded rod will drive the sleeve to rotate, the rotation of the sleeve will drive the gear to rotate, the rotation of the gear will drive the rack to move, the rack will drive the connecting rod to move, and the connecting rod will drive the insert block to move, so that one end of the insert block is separated from the interior of the prism block, so that the prism block can be separated from the interior of the prism groove, and the reaming drill bit can be conveniently taken down for replacement and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the head and reaming drill bit connecting structure schematic diagram of the utility model;

[0018] Figure 3The utility model discloses a machine head section view.

[0019] Figure 4 The utility model discloses a threaded rod and sleeve connecting structure schematic diagram.

[0020] In the drawing: 1, machine head, 2, reaming drill bit, 3, press block, 4, prism block, 5, prism groove, 6, insertion slot, 7, insertion block, 8, threaded rod, 9, sleeve, 10, gear, 11, rack, 12, connecting rod, 13, reset spring, 14, rotation groove, 15, movable slot, 16, connecting groove, 17, recess. DETAILED DESCRIPTION

[0021] Below, combining the drawings and specific implementation, the utility model is described further, need explaining, under the premise of not conflicting, the following description between each embodiment of various embodiments or between each technical feature can be arbitrarily combined to form new embodiment.

[0022] Example 1: please refer to Figure 1 - Figure 4 The utility model discloses a reaming device for press, including machine head 1 and reaming drill bit 2, the bottom of machine head 1 is processed prism groove 5, and the top of reaming drill bit 2 is fixedly connected with prism block 4, and prism block 4 is connected in the inside of prism groove 5 in plug-in mode, and one end of machine head 1 is provided with press block 3, and the inside of press block 3 is fixedly connected with threaded rod 8, and one end of threaded rod 8 is threadedly connected with sleeve 9, and one end of sleeve 9 is fixedly connected with gear 10, and the both ends of gear 10 are engagedly connected with two racks 11, and one end of two racks 11 is fixedly connected with two connecting rods 12, and one end of two connecting rods 12 is fixedly connected with two insertion blocks 7, and two insertion blocks 7 are respectively connected in plug-in mode in the both ends of prism block 4;

[0023] When needing to replace and overhaul reaming drill bit 2, press press block 3, and press block 3 will drive threaded rod 8 to move to the inside of sleeve 9, since one end of threaded rod 8 is threadedly connected with sleeve 9, the movement of threaded rod 8 will drive sleeve 9 to rotate, and sleeve 9 will drive gear 10 to rotate, and the rotation of gear 10 will drive rack 11 to move, and rack 11 will drive connecting rod 12 to move, and connecting rod 12 will drive insertion block 7 to move, so that one end of insertion block 7 is separated from the inside of prism block 4, so that prism block 4 can be separated from the inside of prism groove 5, and then reaming drill bit 2 can be conveniently removed to replace and overhaul;

[0024] Further, two insertion slots 6 are processed in the both ends of prism block 4, and two insertion blocks 7 are respectively connected in plug-in mode in the inside of two insertion slots 6, when connecting rod 12 drives insertion block 7 to move, and insertion block 7 is inserted into the inside of insertion slot 6, so that insertion block 7 will limit prism block 4, to avoid that prism block 4 is separated from the inside of prism groove 5;

[0025] Further, the inside of the sleeve 9 is provided with a reset spring 13, one end of the reset spring 13 is in contact with one end of the threaded rod 8, when the threaded rod 8 moves towards the inside of the sleeve 9, the threaded rod 8 will press the reset spring 13, by providing the reset spring 13, when the pressing block 3 is pressed, the threaded rod 8 will drive the reset spring 13 to compress, when the pressing block 3 is released, the reset spring 13 resets and extends, the reset spring 13 will drive the threaded rod 8 to move back to the original position;

[0026] Further, the inside of the machine head 1 is processed with a rotating groove 14, the sleeve 9 is rotatably connected inside the rotating groove 14, when the sleeve 9 rotates driven by the threaded rod 8, the sleeve 9 will rotate along the inside of the rotating groove 14, by providing the rotating groove 14, the rotating groove 14 will limit the rotation of the sleeve 9;

[0027] Further, the inside of the machine head 1 is processed with two movable grooves 15, the rack 11 is movably connected inside the movable groove 15, when the rack 11 moves driven by the gear 10, the rack 11 will move along the inside of the movable groove 15, by providing the movable groove 15, the movable groove 15 will limit the rotation of the rack 11, so that the rack 11 remains stable when moving;

[0028] Further, one end of the movable groove 15 is processed with a connecting groove 16, the connecting rod 12 is movably connected inside the connecting groove 16, when the connecting rod 12 moves driven by the rack 11, the connecting rod 12 will move along the inside of the connecting groove 16, by providing the connecting groove 16, the connecting groove 16 will limit the movement of the connecting rod 12, so that the connecting rod 12 remains stable when moving;

[0029] Further, one end of the connecting groove 16 is processed with a recess 17, the plug 7 is movably connected inside the recess 17, when the plug 7 moves driven by the connecting rod 12 and separates from the inside of the insertion groove 6, one end of the plug 7 will move along the inside of the connecting groove 16, so that the plug 7 completely enters the inside of the recess 17.

[0030] Working principle: by pressing the pressing block 3, the pressing block 3 will drive the threaded rod 8 to move towards the inside of the sleeve 9, since one end of the threaded rod 8 is threadedly connected with the sleeve 9, the movement of the threaded rod 8 will drive the sleeve 9 to rotate, the sleeve 9 will drive the gear 10 to rotate, the rotation of the gear 10 will drive the rack 11 to move, the rack 11 will drive the connecting rod 12 to move, the connecting rod 12 will drive the plug 7 to move, so that one end of the plug 7 separates from the inside of the prism block 4, so that the prism block 4 can separate from the inside of the prism groove 5, and then the expansion drill bit 2 can be conveniently removed for replacement and maintenance.

[0031] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. A reaming device for a press machine, comprising a head (1) and a reaming drill bit (2), characterized in that, The bottom of the machine head (1) is processed with a prism groove (5), the top of the core drill bit (2) is fixedly connected with a prism block (4), the prism block (4) is insertedly connected in the inside of the prism groove (5), one end of the machine head (1) is provided with a pressing block (3), the inside of the pressing block (3) is fixedly connected with a threaded rod (8), one end of the threaded rod (8) is threadedly connected with a sleeve (9), one end of the sleeve (9) is fixedly connected with a gear (10), both ends of the gear (10) are meshingly connected with two racks (11), one end of the two racks (11) is fixedly connected with two connecting rods (12), one end of the two connecting rods (12) is fixedly connected with two insertion blocks (7), the two insertion blocks (7) are respectively insertedly connected at both ends of the prism block (4).

2. A reaming device for a press machine according to claim 1, characterized in that Both ends of the prism block (4) are processed with two insertion grooves (6), and the two insertion blocks (7) are respectively insertedly connected in the two insertion grooves (6).

3. The hole expanding device for a press machine according to claim 1, wherein The inside of the sleeve (9) is provided with a reset spring (13), one end of the reset spring (13) is in contact with one end of the threaded rod (8).

4. The hole expanding device for a press machine according to claim 1, wherein The inside of the machine head (1) is processed with a rotating groove (14), and the sleeve (9) is rotatably connected in the rotating groove (14).

5. The hole expanding device for a press machine according to claim 1, wherein The inside of the machine head (1) is processed with two movable grooves (15), and the rack (11) is movably connected in the movable groove (15).

6. A reaming device for a press machine according to claim 5, characterized in that One end of the movable groove (15) is processed with a connecting groove (16), and the connecting rod (12) is movably connected in the connecting groove (16).

7. A reaming device for a press machine according to claim 6, characterized in that One end of the connecting groove (16) is processed with a groove (17), and the insertion block (7) is movably connected in the groove (17).

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