An adjustable height support tooling device

Abstract

This utility model discloses an adjustable-height support fixture device, belonging to the field of support fixture technology. It includes a support frame with a parallel operating platform and an auxiliary plate arranged sequentially from top to bottom. A first height adjustment mechanism is provided on the surface of the support frame to adjust the height of the operating platform. Multiple placement grooves are formed on the side of the auxiliary plate near the operating platform, each groove containing multiple ball bearings. Multiple through holes are formed on the surface of the operating platform corresponding to the positions of the ball bearings. A second height adjustment mechanism is provided on the bottom surface of the auxiliary plate, allowing it to move vertically relative to the bottom surface of the operating platform. A dustproof film is provided on the surface of the through holes, with a cross-shaped cutting edge at the center of the dustproof film. This design extends the service life of the device while ensuring the processing stability of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of support tooling technology, specifically to an adjustable height support tooling device. Background Technology

[0002] In machining processes, especially for long sheet metal, bar, or profile workpieces, due to their poor rigidity and susceptibility to deformation, it is often necessary to set up multiple auxiliary support fixtures on the outside of the machine tool table to bear the weight of the overhanging part of the workpiece and ensure machining accuracy.

[0003] In the machining (such as cutting, drilling, and milling) of long plates and large frame-like workpieces, auxiliary support fixtures are required outside the machine tool table. Existing technologies (such as CN209902684U) mainly use ball bearings or rollers to support the workpiece and facilitate its movement and alignment.

[0004] However, this type of tooling has a significant drawback: during machining, especially when subjected to cutting force impact or vibration, the workpiece may experience minute, unintended movements on the balls, which can severely affect machining accuracy and even lead to scrap. Operators typically need additional clamps or pads to manually hold the workpiece in place, making the process cumbersome and inefficient.

[0005] Furthermore, in the machining environment, chips are ubiquitous. The ball bearing mechanism of this support fixture is constantly exposed and is highly susceptible to contamination. Once chips penetrate the ball bearing housing, they will hinder the normal rolling of the balls, accelerate the wear between the balls and the housing, and may even jam the balls, causing the lifting function to fail and severely affecting the accuracy and service life of the fixture. Utility Model Content

[0006] The purpose of this invention is to overcome the aforementioned technical difficulties and provide an adjustable height support fixture.

[0007] To achieve the above objectives, the technical solution adopted is as follows: an adjustable height support fixture device, including a support frame, on which an operating platform and an auxiliary plate are arranged in parallel from top to bottom, and the surface of the support frame is provided with a first height adjustment mechanism for adjusting the height of the operating platform; The auxiliary plate has multiple placement slots on the side surface near the operating platform, and multiple ball bearings are placed in the placement slots. The operating platform surface has multiple through holes at the positions of the ball bearings. The bottom surface of the auxiliary plate is provided with a second height adjustment mechanism to allow the auxiliary plate to move up and down relative to the bottom surface of the operating platform. The surface of the through holes is provided with a dustproof film, and the dustproof film has a cross-shaped cut at its center.

[0008] Furthermore, the first height adjustment mechanism consists of a lead screw fixedly connected to the bottom of the operating platform and a nut slidably connected to the surface of the lead screw and whose outer wall is attached to one side of the support frame surface. The auxiliary plate is provided with a circular hole through which the lead screw passes.

[0009] Furthermore, the second height adjustment mechanism is an electric push rod, the cylinder of which is fixed to the upper surface of the support frame, and the end of the push rod is connected to the bottom surface of the auxiliary plate.

[0010] Furthermore, the placement groove is a ball socket opened on the side surface of the auxiliary plate near the operating platform. Multiple ball sockets are evenly arranged on the surface of the auxiliary plate. A horizontal bar penetrating the ball is fixed in each ball socket. The multiple horizontal bars are horizontally and evenly distributed in the horizontal and vertical directions.

[0011] Furthermore, the multiple ball sockets are arranged in multiple horizontal and parallel rows, with the horizontal bar in the front row of ball sockets facing the horizontal axis and the horizontal bar in the rear row of ball sockets facing the vertical axis.

[0012] Furthermore, the thickness of the operating platform is less than the height of the ball bearing above the surface of the auxiliary plate after the ball bearing is placed in the placement groove, and the diameter of the through hole is slightly larger than the diameter of the ball bearing.

[0013] Furthermore, the support frame is provided with multiple telescopic rods that penetrate the auxiliary plate and are fixedly connected to the bottom surface of the operating platform.

[0014] The beneficial effects of adopting the above solution are as follows: After use, the height-adjustable support fixture device adjusts the height of the operating platform through the first height adjustment mechanism, and drives the auxiliary plate and ball bearings to rise and fall as a whole through the second height adjustment mechanism. This controls all the ball bearings to simultaneously protrude or hide on the surface of the operating platform, avoiding the situation where the ball bearings are exposed to the outside for a long time and get stuck by chips. A dustproof film with a cross-shaped cutting edge is set on the surface of the through hole of the operating platform. This dustproof film is designed to automatically close due to the elasticity of the material after the ball bearings fall, forming an effective seal. This completely prevents contaminants such as chips from falling into the precision components such as the ball bearing mechanism and electric push rod below through the through hole, ensuring the cleanliness of the internal mechanism and significantly reducing wear and failure rate. At the same time, the ball bearings are constrained in the ball socket by the crossbar fixing method, avoiding the displacement of the ball bearings during the rising and falling process and the workpiece chips from affecting the workpiece processing. Overall, this extends the service life of the device while ensuring the processing stability of the workpiece. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the adjustable height support fixture of this utility model.

[0016] Figure 2 for Figure 1 The left view.

[0017] Figure 3 This is a top view of the auxiliary plate after the balls have been removed.

[0018] Figure 4 This is a schematic diagram of the adjustable height support fixture in Embodiment 2.

[0019] In the diagram, 1 is a through hole; 2 is a dustproof membrane; 3 is an operating platform; 4 is an auxiliary plate; 5 is a support frame; 6 is a lead screw; 7 is a nut; 8 is a ball bearing; 9 is an electric push rod; 10 is a ball socket; 11 is a crossbar; 12 is a round hole; and 13 is a telescopic rod. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. The described embodiments are merely some, not all, of these embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] Example 1 like Figure 1-3 An adjustable height support fixture includes a base for the entire device, a support frame 5 which can be welded from profiles such as channel steel and square tube to form a stable frame structure. The support frame 5 is provided with an operating platform 3 and an auxiliary plate 4 arranged in parallel from top to bottom. The surface of the support frame 5 is provided with a first height adjustment mechanism for adjusting the height of the operating platform 3. The auxiliary plate 4 has multiple placement slots on the side surface near the operating platform 3, and multiple ball bearings 8 are placed in the placement slots. The operating platform 3 has multiple through holes 1 at the positions of the ball bearings 8. The bottom surface of the auxiliary plate 4 is provided with a second height adjustment mechanism, which can make the auxiliary plate 4 move up and down relative to the bottom surface of the operating platform 3. The surface of the through holes 1 is provided with a dustproof film 2, and the dustproof film 2 has a cross-shaped cut in the center.

[0022] In specific implementation, the first height adjustment mechanism is a lead screw 6 fixedly connected to the bottom of the operating platform 3 and a nut 7 slidably connected to the surface of the lead screw 6 and whose outer wall is attached to one side of the surface of the support frame 5. The auxiliary plate 4 is provided with a circular hole 12 through which the lead screw 6 passes.

[0023] In specific implementation, the second height adjustment mechanism is an electric push rod 9. The cylinder of the electric push rod 9 is fixed to the upper surface of the support frame 5, and the end of its push rod is connected to the bottom surface of the auxiliary plate 4.

[0024] In specific implementation, the placement groove is a ball socket 10 opened on the side surface of the auxiliary plate 4 near the operating platform 3. Multiple ball sockets 10 are evenly arranged on the surface of the auxiliary plate 4. Each ball socket 10 is fixed with a horizontal bar 11 that passes through the ball 8. The multiple horizontal bars 11 are horizontal and evenly distributed in the horizontal and vertical directions.

[0025] In specific implementation, the multiple ball sockets 10 are arranged in multiple horizontal and parallel rows. When the horizontal bar 11 in the front row of ball sockets 10 is oriented horizontally, the horizontal bar 11 in the rear row of ball sockets 10 is oriented horizontally.

[0026] In specific implementation, the thickness of the operating platform 3 is less than the height of the ball bearing 8 above the surface of the auxiliary plate 4 after the ball bearing 8 is placed in the placement groove, and the diameter of the through hole 1 is slightly larger than the diameter of the ball bearing 8.

[0027] The specific implementation method is as follows: After adjusting the nut 7 with a wrench so that the lead screw 6 drives the operation panel to rise or fall to a suitable operating height, turn on the electric push rod 9 to push the auxiliary plate 4 upward so that its multiple balls 8 pass through the dustproof film 2 and protrude to the surface of the operation platform 3. After the workpiece is placed on the multiple balls 8 and moved to a suitable cutting position, the auxiliary plate 4 is lowered, the dustproof film 2 is reset, and cutting begins to complete one workpiece cutting task.

[0028] In this process: the ball bearings 8 are constrained within the ball socket 10 by using crossbars 11 to prevent the ball bearings 8 from falling during the rising and falling process and the displacement of workpiece chips during cutting from affecting the workpiece processing. In particular, the crossbars 11 of the front and rear rows of ball bearings 8 adopt a crisscross layout, so that the workpiece can obtain uniform and stable rolling support force when it moves in any direction, avoiding the instability of unidirectional rolling, and enhancing the load-bearing capacity and smoothness of movement. A dustproof membrane 2 with a cross-shaped cutting edge is provided on the surface of the through hole 1 of the operating platform 3. The dustproof membrane 2 is designed to automatically close due to the elasticity of the material after the ball 8 descends, forming an effective seal. This completely prevents contaminants such as chips and coolant from falling into the precision components such as the ball 8 mechanism and electric push rod 9 below through the through hole 1, ensuring the cleanliness of the internal mechanism and significantly reducing wear and failure rate. The first height adjustment mechanism adjusts the height of the operating platform 3, and the second height adjustment mechanism drives the auxiliary plate 4 and the ball bearings 8 to rise and fall as a whole, controlling all the ball bearings 8 to protrude or hide synchronously on the surface of the operating platform 3, thus avoiding the situation where the ball bearings 8 are exposed to the outside for a long time and get stuck by chips.

[0029] After overall application, the service life of the device is extended while ensuring the processing stability of the workpiece.

[0030] Example 2 like Figure 4Based on Embodiment 1, multiple telescopic rods 13 are vertically arranged on the surface of the support frame 5, penetrating the auxiliary plate 4 and fixedly connected to the bottom surface of the operating platform 3. The arrangement of multiple telescopic rods 13 forms a robust guide frame between the operating platform 3 and the auxiliary plate 4. This design ensures that the operating platform 3 moves in the vertical direction, completely eliminating the jamming, tilting, or swaying problems that may be caused by off-center loading, making the rising and falling actions more reliable.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A height-adjustable support fixture, comprising a support frame (5), characterized in that: The support frame (5) is provided with an operating platform (3) and an auxiliary plate (4) arranged in parallel from top to bottom. The surface of the support frame (5) is provided with a first height adjustment mechanism for adjusting the height of the operating platform (3). The auxiliary plate (4) has multiple placement slots on the side surface near the operating platform (3), and multiple balls (8) are provided in the placement slots. The operating platform (3) has multiple through holes (1) at the positions of the balls (8). The bottom surface of the auxiliary plate (4) is provided with a second height adjustment mechanism that allows the auxiliary plate (4) to move up and down relative to the bottom surface of the operating platform (3). The surface of the through holes (1) is provided with a dustproof film (2), and the center of the dustproof film (2) is provided with a cross-shaped knife edge.

2. The adjustable-height support fixture device according to claim 1, characterized in that: The first height adjustment mechanism is a lead screw (6) fixedly connected to the bottom of the operating platform (3) and a nut (7) slidably connected to the surface of the lead screw (6) and whose outer wall is attached to one side of the surface of the support frame (5). The auxiliary plate (4) is provided with a circular hole (12) through which the lead screw (6) passes.

3. The adjustable-height support fixture device according to claim 2, characterized in that: The second height adjustment mechanism is an electric push rod (9). The cylinder of the electric push rod (9) is fixed to the upper surface of the support frame (5), and the end of its push rod is connected to the bottom surface of the auxiliary plate (4).

4. The adjustable-height support fixture device according to claim 3, characterized in that: The placement groove is a ball socket (10) opened on the side surface of the auxiliary plate (4) near the operating platform (3). Multiple ball sockets (10) are evenly arranged on the surface of the auxiliary plate (4). A horizontal bar (11) is fixedly and horizontally arranged in each ball socket (10) and penetrates the ball (8). The multiple horizontal bars (11) are horizontal and evenly distributed in the horizontal and vertical directions.

5. The adjustable-height support fixture device according to claim 4, characterized in that: The ball sockets (10) are arranged in multiple horizontal and parallel rows. When the horizontal bar (11) in the front row of ball sockets (10) is horizontal and facing the horizontal axis, the horizontal bar (11) in the rear row of ball sockets (10) is horizontal and facing the vertical axis.

6. The adjustable-height support fixture device according to claim 5, characterized in that: The thickness of the operating platform (3) is less than the height of the ball (8) above the surface of the auxiliary plate (4) after the ball (8) is placed in the placement groove, and the diameter of the through hole (1) is slightly larger than the diameter of the ball (8).

7. The adjustable-height support fixture device according to claim 6, characterized in that: The support frame (5) has multiple telescopic rods (13) that penetrate the auxiliary plate (4) and are fixedly connected to the bottom surface of the operating platform (3).

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