Auxiliary workpiece supporting device

Abstract

The utility model provides an auxiliary workpiece supporting device, and relates to the technical field of deep hole machine tools. When the lifting device is used, the base, the guide rod, the mounting plate, the bracket body, the connecting seat, the lifting assembly and the brake assembly are matched for use, the tail end of a brake rod is pulled outwards to be separated from a brake block, a handle is rotated to drive a first bevel gear and drive a second bevel gear in a meshed mode, and then a threaded sleeve is driven to rotate in a fixed frame in a limited mode. After the lifting rod drives the mounting plate to rise to a proper height, pulling to the tail end of the brake rod is released, so that the brake rod is inserted into a fixing hole corresponding to the position under the action that a spring is reset to extrude a pushing block, the brake block is locked and cannot rotate, a lifted and supported workpiece is avoided, and the work efficiency is improved. And under the action of self weight and vibration generated in the machining process, the workpiece gradually moves downwards to influence the machining precision of the workpiece, and the supporting effect of the auxiliary supporting device for the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deep hole machine tools, in particular to a workpiece auxiliary supporting device. Background Art

[0002] A deep hole machine tool is a machine tool specially used for processing long holes, fine holes or deep holes. It is usually used to manufacture workpieces such as automobile engine blocks, bearing housings, hydraulic cylinders, etc. These workpieces require deeper holes.

[0003] In the prior art, such as Chinese patent CN218904338U, a deep hole machine tool workpiece auxiliary supporting device comprises a base plate, a worm gear screw lift is fixedly installed on the top of the base plate by bolts, a fixed plate is installed at one end of the screw of the worm gear screw lift, a bracket body is installed on the top of the fixed plate by bolts, and guide mechanisms are slidably installed at both ends of the bracket body, the guide mechanism comprises two guide rods, a sliding sleeve is sleeved on the outside of each guide rod, the sliding sleeve is fixedly embedded at both ends of the bracket body, and a positioning sleeve is fixedly connected to the top and middle of the guide rod. The utility model installs the base plate on the deep hole machine tool, and then rotates the handwheel of the worm gear screw lift so that the trapezoidal screw of the worm gear screw lift and the bracket body can move up and down, and the guide rods arranged by the guide mechanism can guide the up and down movement of the bracket body, thereby ensuring that the bracket body can drive the workpiece to lift stably and adapt to the self-support requirements of workpieces with different outer diameters.

[0004] In the above patent, the trapezoidal screw and the bracket body of the elevator can be moved up and down by turning the hand wheel, and the lifting amount of the trapezoidal screw is detected by the displacement sensor. However, if the workpiece above the bracket body is heavy and accompanied by vibrations generated during deep hole processing, the lifted workpiece will have a small impact on the bracket body, and the threaded rod and the meshing mechanism will shake and gradually move downward, resulting in the radial aperture offset of the supported workpiece, which may eventually lead to unqualified dimensional accuracy and geometric accuracy. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that if the workpiece above the bracket body is heavy and accompanied by vibrations generated during deep hole processing, the supported workpiece will have a small impact on the bracket body, and the threaded rod and the meshing mechanism will shake and gradually move downward, resulting in a radial aperture deviation of the supported workpiece, which may eventually lead to unqualified dimensional accuracy and geometric accuracy. A workpiece auxiliary support device is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an auxiliary workpiece support device, comprising: a base, the top of the base is symmetrically fixedly connected with a guide rod, the outer surfaces of the two guide rods are slidably connected with a mounting plate, the top of the mounting plate is fixedly connected with a bracket body, and the bottom center of the mounting plate is fixedly connected with a connecting seat; a lifting component, the lifting component includes a fixed frame, the fixed frame is fixedly connected to the top center of the base, the front surface of the fixed frame is equipped with a rotating rod, the outer surface of the rotating rod rotates and penetrates the front surface of the fixed frame, and the rear end surface of the rotating rod is fixedly connected with A first bevel gear, the outer surface of the first bevel gear is meshed and rotatably connected with the second bevel gear, the inner surface of the second bevel gear is fixedly connected with a threaded sleeve, the outer surface of the threaded sleeve rotates and passes through the inner bottom of the fixed frame, the inner surface of the threaded sleeve is threaded and rotatably connected with a threaded rod, the outer surface of the threaded rod is rotatably connected to the inner surface of the connecting seat near the top, the outer surface of the rotating rod is fixedly connected with a brake block near the middle position, and a plurality of fixing holes are equidistantly provided on the outer surface of the brake block; a brake assembly, the brake assembly is fixedly connected to the front surface of the fixed frame, and the brake assembly includes a mounting frame.

[0007] Preferably, the mounting bracket is fixedly connected to the front surface of the fixing bracket near one side edge, the inner surface of the mounting bracket is matched with a pushing block, the inner surface of the pushing block is fixedly connected with a brake rod, the outer surface of the brake rod slides through the outer surfaces of both sides of the mounting bracket, the outer surface of the brake rod is sleeved with a spring, and the spring is matched with the pushing block.

[0008] Preferably, the outer surface of one side of the brake rod is hemispherical at a position away from the push block, and the brake rod matches the positions of the multiple fixing holes.

[0009] Preferably, the diameter of the fixing hole is larger than the cross-sectional diameter of the brake rod, and the brake rod and the brake block are matched with each other.

[0010] Preferably, the inner surface of the mounting frame is symmetrically fixedly connected with sliding rods, and the outer surfaces of the two sliding rods slide through the outer surfaces of both sides of the pushing block.

[0011] Preferably, a turntable is fixedly connected to the front end surface of the rotating rod, and a handle is provided on the front end surface of the turntable near one side edge.

[0012] Preferably, a through hole is opened at the center of the top of the base, and the diameter of the through hole at the top of the base is directly larger than the cross-sectional diameter of the threaded rod.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when in use, through the coordinated use of the base, guide rod, mounting plate, bracket body, connecting seat, lifting assembly and brake assembly, the tail end of the brake rod is pulled outward to separate it from the brake block, the handle is turned to drive the first bevel gear and mesh with the second bevel gear, thereby driving the threaded sleeve to rotate within the fixed frame within a limited position, and the lifting rod drives the mounting plate to rise to a suitable height, and then releases the pull on the tail end of the brake rod, so that under the squeezing action of the spring return on the push block, the brake rod is inserted into the fixed hole corresponding to the position, and the brake block is locked so that it cannot rotate, thereby preventing the workpiece being lifted and supported from gradually moving downward under the action of its own weight and the vibration generated during the processing, thereby affecting the processing accuracy of the workpiece, and improving the supporting effect of the workpiece auxiliary support device.

[0015] 2. In the utility model, when in use, by symmetrically fixing the slide bars on the inner side of the mounting frame near the front surface, the push block, under the action of the spring, will slide within the inner side of the mounting frame on the outer surfaces of the two slide bars, thereby reducing the friction with the inner side of the mounting frame and preventing the push block from getting stuck in the mounting frame during movement, thereby improving the use effect of the workpiece auxiliary support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a workpiece auxiliary support device is proposed for the utility model;

[0017] Figure 2 A schematic diagram of the structure of a lifting component of a workpiece auxiliary support device is provided for the utility model;

[0018] Figure 3 A schematic diagram of the structure of a brake assembly of a workpiece auxiliary support device is provided for the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of the base structure of a workpiece auxiliary support device.

[0020] Legend: 1. Base; 2. Guide rod; 3. Mounting plate; 4. Bracket body; 5. Connecting seat; 6. Lifting assembly; 601. Fixing frame; 602. Threaded sleeve; 603. First bevel gear; 604. Second bevel gear; 605. Threaded rod; 606. Brake block; 607. Fixing hole; 608. Turntable; 609. Handle; 610. Rotating rod; 7. Brake assembly; 701. Mounting frame; 702. Push block; 703. Brake rod; 704. Sliding rod. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a workpiece auxiliary support device, including: a base 1, the top of the base 1 is symmetrically fixedly connected with a guide rod 2, the outer surfaces of the two guide rods 2 are slidably connected with a mounting plate 3, the top of the mounting plate 3 is fixedly connected with a bracket body 4, and the bottom center of the mounting plate 3 is fixedly connected with a connecting seat 5; a lifting component 6, the lifting component 6 includes a fixed frame 601, the fixed frame 601 is fixedly connected to the top center of the base 1, the front surface of the fixed frame 601 is equipped with a rotating rod 610, and the outer surface of the rotating rod 610 is rotated through The front surface of the fixing frame 601 is passed through, and the rear end surface of the rotating rod 610 is fixedly connected with the first bevel gear 603. The outer surface of the first bevel gear 603 is meshed and rotatably connected with the second bevel gear 604. The inner surface of the second bevel gear 604 is fixedly connected with the threaded sleeve 602. The outer surface of the threaded sleeve 602 rotates through the inner bottom of the fixing frame 601. The inner surface of the threaded sleeve 602 is threadedly rotatably connected with the threaded rod 605. The outer surface of the threaded rod 605 is rotatably connected to the inner surface of the connecting seat 5 near the top. A brake block 606 is fixedly connected to the outer surface near the middle position, and a plurality of fixing holes 607 are equidistantly provided on the outer surface of the brake block 606; a brake assembly 7, the brake assembly 7 is fixedly connected to the front surface of the fixing frame 601, the brake assembly 7 includes a mounting frame 701, the mounting frame 701 is fixedly connected to the front surface of the fixing frame 601 near one side edge, the inner surface of the mounting frame 701 is equipped with a push block 702, the inner surface of the push block 702 is fixedly connected to a brake rod 703, and the outer surface of the brake rod 703 slides through the mounting frame 701 On the outer surfaces of both sides, the outer surface of the brake rod 703 is sleeved with a spring 706, and the spring 706 is matched with the pushing block 702. The outer surface of one side of the brake rod 703 away from the pushing block 702 is hemispherical, and the brake rod 703 matches the position of multiple fixing holes 607. The diameter of the fixing hole 607 is larger than the cross-sectional diameter of the brake rod 703. The brake rod 703 and the brake block 606 are matched. The front end face of the rotating rod 610 is fixedly connected to the turntable 608, and the front end face of the turntable 608 is close to the edge of one side. The handle 609 is set.

[0024] The effect achieved by the entire embodiment 1 is that when the workpiece is provided with auxiliary support, the base 1 is fixedly installed at a suitable working location and used in conjunction with a deep hole machine tool. The tail end ring block of the brake rod 703 is pulled to drive the push block 702 to move inside the mounting frame 701. The push block 702 squeezes the spring 706 arranged on one side to cause it to deform and shrink, and causes the brake rod 703 to shrink into the mounting frame 701. The hemispherical outer surface on the other side is separated from the corresponding fixing hole 607, thereby releasing the lock on the brake block 606. The handle 609 is held and the turntable 608 is moved in a clockwise circular motion to drive the rotating rod 610 to rotate within the fixed frame 601 within a limited range. The first bevel gear 603 rotates synchronously, and its outer surface meshes with the second bevel gear 604 to drive the threaded sleeve 602 to rotate in the inner wall of the fixed frame 601. Its inner surface meshes with the rotating The connected threaded rod 605 will move upward along its inner side, and the top end of the threaded rod 605 will rotate within the connecting seat 5, thereby driving the mounting plate 3 to move upward. After the mounting plate 3 slides to a suitable height along the outer surface of the two guide rods 2, the bracket body 4 arranged above it will process the surface of the workpiece for auxiliary support, and then release the brake rod 703 that is continuously pulled. Under the elastic reset action of the spring 706, the spring 706 continues to squeeze the push block 702, so that one end of the brake rod 703 will be inserted into the fixing hole 607 corresponding to the position at this time, or after sliding and rubbing with the surface of the brake block 606, it will slide into the adjacent fixing hole 607, and limit and lock the brake block 606 so that it cannot rotate, thereby preventing the workpiece being lifted and supported from gradually moving downward under the action of its own weight and the vibration generated during the processing, thereby affecting the processing accuracy of the workpiece, thereby improving the supporting effect of the workpiece auxiliary support device.

[0025] Embodiment 2, as Figure 1-Figure 4 As shown, the inner surface of the mounting frame 701 is symmetrically fixedly connected with sliding rods 704, and the outer surfaces of the two sliding rods 704 slide through the outer surfaces of both sides of the pushing block 702. A through hole is opened at the top center of the base 1, and the diameter of the top through hole of the base 1 is directly larger than the cross-sectional diameter of the threaded rod 605.

[0026] The effect achieved by the entire embodiment 2 is that, when in use, a through hole is opened at the top center of the base 1, so that the threaded rod 605 can shrink into the internal space of the base 1 when moving downward, and the sliding rods 704 are symmetrically fixed on the inner side of the mounting frame 701 near the front surface, so that the pushing block 702, under the action of the spring 706, will slide on the outer surfaces of the two sliding rods 704 when moving on the inner side of the mounting frame 701, thereby reducing the friction with the inner side of the mounting frame 701 and preventing the pushing block 702 from being stuck in the mounting frame during movement, thereby improving the use effect of the workpiece auxiliary support device.

[0027] Working principle: When assisting the workpiece, the base 1 is fixedly installed at a suitable working location and used in conjunction with a deep hole machine tool. The tail ring block of the brake rod 703 is pulled to drive the push block 702 to move inside the mounting frame 701. The push block 702 squeezes the spring 706 set on one side to cause it to deform and shrink, and causes the brake rod 703 to shrink into the mounting frame 701. The hemispherical outer surface on the other side is separated from the corresponding fixing hole 607, releasing the lock on the brake block 606. Hold the handle 609 and turn the turntable 608 clockwise. The circular motion in the needle direction drives the rotating rod 610 to rotate within the fixed frame 601, and the first bevel gear 603 rotates synchronously, and its outer surface meshes with the second bevel gear 604, driving the threaded sleeve 602 to rotate in the inner wall of the fixed frame 601, and its inner surface meshes with the rotationally connected threaded rod 605, which will move upward along its inner side, and the top of the threaded rod 605 will rotate within the connecting seat 5, thereby driving the mounting plate 3 to move upward. After the mounting plate 3 slides to a suitable height along the outer surfaces of the two guide rods 2, the bracket body 4 arranged above it will process the surface of the workpiece. After the auxiliary support, the brake rod 703 that is continuously pulled is released. Under the elastic restoring action of the spring 706, the spring 706 continues to squeeze the push block 702, so that one end of the brake rod 703 will be inserted into the fixing hole 607 corresponding to the position at this time, or after sliding and rubbing with the surface of the brake block 606, it will slide into the adjacent fixing hole 607, and the brake block 606 will be limited and locked to prevent it from rotating, thereby preventing the workpiece supported by the support from gradually moving downward under the action of its own weight and the vibration generated during the processing, thereby affecting the processing accuracy of the workpiece, thereby improving the auxiliary support of the workpiece. In order to improve the supporting effect of the device, a through hole is provided at the top center of the base 1, so that the threaded rod 605 can be retracted into the internal space of the base 1 when moving downward, and the sliding rods 704 are symmetrically fixed on the inner side of the mounting frame 701 near the front surface, so that the pushing block 702, under the action of the spring 706, will slide on the outer surfaces of the two sliding rods 704 when moving on the inner side of the mounting frame 701, thereby reducing the friction with the inner side of the mounting frame 701 and preventing the pushing block 702 from being stuck in the mounting frame 701 during movement, thereby improving the use effect of the workpiece auxiliary support device.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A workpiece auxiliary support device, characterized in that: include: A base (1), wherein the top of the base (1) is symmetrically fixedly connected to guide rods (2), the outer surfaces of the two guide rods (2) are slidably connected to mounting plates (3), the top of the mounting plates (3) is fixedly connected to a bracket body (4), and the bottom center of the mounting plates (3) is fixedly connected to a connecting seat (5); The lifting assembly (6) comprises a fixed frame (601), the fixed frame (601) is fixedly connected to the top center of the base (1), the front surface of the fixed frame (601) is matched with a rotating rod (610), the outer surface of the rotating rod (610) rotates through the front surface of the fixed frame (601), the rear end surface of the rotating rod (610) is fixedly connected to a first bevel gear (603), the outer surface of the first bevel gear (603) is meshed and rotatably connected to a second bevel gear (604), and the second bevel gear (604) is meshed and rotatably connected to the rear end surface of the rotating rod (610). The inner surface of the gear (604) is fixedly connected to a threaded sleeve (602), the outer surface of the threaded sleeve (602) rotates and penetrates the inner bottom of the fixed frame (601), the inner surface of the threaded sleeve (602) is threadedly connected to a threaded rod (605), the outer surface of the threaded rod (605) is rotatably connected to the inner surface of the connecting seat (5) near the top, the outer surface of the rotating rod (610) is fixedly connected to a brake block (606) near the middle, and the outer surface of the brake block (606) is provided with a plurality of fixing holes (607) at equal intervals; A brake assembly (7), wherein the brake assembly (7) is fixedly connected to the front surface of the fixing frame (601), and the brake assembly (7) comprises a mounting frame (701).

2. The workpiece auxiliary support device according to claim 1, characterized in that: The mounting frame (701) is fixedly connected to the front surface of the fixing frame (601) near one side edge, the inner surface of the mounting frame (701) is matched with a pushing block (702), the inner surface of the pushing block (702) is fixedly connected with a brake rod (703), the outer surface of the brake rod (703) slides through the outer surfaces of both sides of the mounting frame (701), the outer surface of the brake rod (703) is sleeved with a spring (706), and the spring (706) is matched with the pushing block (702).

3. The workpiece auxiliary support device according to claim 2, characterized in that: The outer surface of one side of the brake rod (703) is in a hemispherical shape at a position away from the push block (702), and the brake rod (703) matches the positions of the plurality of fixing holes (607).

4. The workpiece auxiliary support device according to claim 3, characterized in that: The diameter of the fixing hole (607) is larger than the cross-sectional diameter of the brake rod (703), and the brake rod (703) and the brake block (606) are matched with each other.

5. The workpiece auxiliary support device according to claim 2, characterized in that: The inner surface of the mounting frame (701) is symmetrically fixedly connected with sliding rods (704), and the outer surfaces of the two sliding rods (704) slide through the outer surfaces of both sides of the pushing block (702).

6. The workpiece auxiliary support device according to claim 1, characterized in that: The front end surface of the rotating rod (610) is fixedly connected to a rotating disk (608), and a handle (609) is provided on the front end surface of the rotating disk (608) near one side edge.

7. The workpiece auxiliary support device according to claim 1, characterized in that: A through hole is provided at the center of the top of the base (1), and the diameter of the through hole at the top of the base (1) is directly larger than the cross-sectional diameter of the threaded rod (605).

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