Workpiece clamping and feeding mechanism and drilling machine tool

Abstract

The invention relates to the field of machine tool workpiece clamping devices, in particular to a workpiece clamping and feeding mechanism and a drilling machine tool. The pushing mechanism comprises an abutting plate, a first driving part used for controlling the abutting plate to move in the first direction and a limiting part used for limiting the abutting plate to move in the first direction, a plurality of side wheels and pressing wheels are arranged on the side, close to the workpiece, of the abutting plate, and the side wheels are used for supporting the side, close to the abutting plate, of the workpiece in a rolling mode; the pressing wheel is installed above the abutting plate through a moving assembly and used for supporting the upper end face of the workpiece in a rolling mode. The workpiece can be clamped in the first direction and limited in the second direction, the workpiece can move in the second direction synchronously while moving in the first direction under the condition that the workpiece is clamped, the moving speed of the workpiece during feeding is increased, the machining efficiency of the workpiece is improved, and the feeding precision of the workpiece is improved.

Description

Technical Field

[0001] The invention relates to the field of machine tool workpiece clamping devices, in particular to a workpiece clamping feeding mechanism and a drilling machine tool. Background Art

[0002] In the machining industry, a clamping device is usually required to clamp the workpiece when machining the workpiece, and to control the tool on the machine tool to machine the workpiece. When machining larger workpieces, due to the limited moving range of the tool, it is usually necessary to cooperate with a feed device to drive the workpiece to move, so that the machining area of ​​the workpiece can be moved under the tool and the workpiece can be fixed before machining.

[0003] At present, a Chinese patent application with publication number CN 118528043 A and publication date August 23, 2024 proposes a clamping and feeding device for a long-type parts processing machine tool, including a base, on which a Y-axis moving mechanism, a mobile clamping mechanism, and a fixed clamping mechanism are provided. The base is also provided with a trough body, and a lifting mechanism is provided inside the trough body. An auxiliary side clamping mechanism is provided on the upper part of the lifting mechanism, and the auxiliary side clamping mechanism is arranged between the mobile clamping mechanism and the fixed clamping mechanism.

[0004] When in use, the Y-axis moving mechanism is used to drive the mobile clamping mechanism to move along the Y-axis direction, the mobile clamping mechanism and the fixed clamping mechanism are used to clamp long strip parts, and the auxiliary side clamping mechanism is used to clamp the side of the long strip parts.

[0005] With regard to the above-mentioned related technologies, the fixed clamping mechanism and the auxiliary side clamping mechanism need to be loosened before the mobile clamping mechanism can drive the workpiece to move. Moreover, each time the workpiece is moved, the fixed clamping mechanism and the auxiliary clamping mechanism need to be loosened first and then clamped, which affects the processing efficiency of the workpiece. Summary of the invention

[0006] In order to improve the efficiency of a workpiece clamping and moving mechanism in driving a workpiece to move, and to enhance the processing efficiency of the workpiece, the present invention provides a workpiece clamping and feeding mechanism and a drilling machine tool.

[0007] In the first aspect, the present invention provides a workpiece clamping and feeding mechanism, which adopts the following technical solution: A workpiece clamping and feeding mechanism comprises at least two relatively arranged pushing mechanisms, the pushing mechanism comprises an abutment plate, a first driving member for controlling the movement of the abutment plate in a first direction and a limiting member for limiting the movement of the abutment plate in the first direction, a roller assembly is arranged on a side of the abutment plate close to the workpiece, the roller assembly comprises: a plurality of side wheels, all of which are fixedly arranged on a side of the abutment plate close to the workpiece, the plurality of side wheels are arranged along a second direction, the second direction is perpendicular to the first direction in a horizontal plane, the side wheels are used for rolling support on a side of the workpiece close to the abutment plate; a pressure wheel, the axial direction of the pressure wheel is parallel to the first direction, the pressure wheel is installed above the abutment plate through a moving assembly, the moving assembly is used to drive the pressure wheel to abut against an upper end surface of the workpiece, and the pressure wheel is used for rolling support on the upper end surface of the workpiece.

[0008] By adopting the above technical scheme, when a machine tool is used to process a workpiece, first, two relatively arranged pushing mechanisms are respectively abutted against two relatively side edges of the workpiece, and the abutment plates of the pushing mechanisms are used to support the side edges of the workpiece, and the limit members fixedly arranged on the abutment plates are arranged along the slide rails of the machine tool, and the length direction of the slide rails is set to the first direction, and the limit members are slidably arranged on the machine tool to limit the movement of the abutment plates in the first direction; secondly, the abutment plates on the two pushing mechanisms are respectively driven by the first driving mechanism, so that the two abutment plates respectively arranged on both sides of the workpiece are moved along the first direction toward the direction close to the workpiece, and the workpiece is clamped between the two abutment plates; when the abutment plates clamp the workpiece, the side wheels on the sides of the abutment plates roll and support on the sides of the workpiece, and the clamping wheels above the abutment plates are pressed above the workpiece under the control of the moving assembly and roll and support on the workpiece, and the side wheels and the clamping wheels can clamp the workpiece on the sides and above, and again, the two relatively arranged pushing mechanisms move synchronously along the first direction under the drive of the first driving member, and can drive the clamped workpiece to move along the first direction.

[0009] At this time, if it is necessary to control the workpiece to move along the second direction, other linear drive mechanisms can be set on the side of the machine tool to control the workpiece to move along the second direction. At this time, there is no need to loosen the workpiece clamping and feeding mechanism in the present application, and the workpiece can be directly driven to move along the second direction from the side; or another group of workpiece clamping and feeding mechanisms in the present application can be set on the side of the machine tool along the second direction. The two workpiece clamping and feeding mechanisms can clamp and provide rolling support on the four sides of the workpiece, so that the workpiece can move in the first direction and the second direction at the same time without loosening the clamping and feeding mechanism, thereby saving time for workpiece movement and improving workpiece movement efficiency; at the same time, since the four sides and the top of the workpiece are clamped and fixed during the movement of the workpiece, the stability of the workpiece during movement and feeding can be improved, thereby improving the accuracy of the workpiece movement.

[0010] Optionally, the moving assembly includes two rotating connecting rods, one end of which is rotatably mounted on the abutment plate; a horizontal connecting rod is arranged along the first direction, and the other ends of the two rotating connecting rods are rotatably mounted on the horizontal connecting rod; a second driving member is fixedly mounted on the abutment plate and is used to drive the rotating connecting rods to rotate; the clamping wheel is mounted on one end of the horizontal connecting rod close to the workpiece.

[0011] When the machine tool drills a hole on a workpiece, the tool will move relative to the workpiece in the vertical direction, which will then cause the workpiece to move relative to the workpiece in the vertical direction. Therefore, it is necessary to press the workpiece against the table of the machine tool above the workpiece. If the moving assembly that controls the movement of the clamping wheel is directly vertically arranged above the abutment plate, if the top of the moving assembly is too high, there is a risk of interference with the tool above when the moving assembly moves with the abutment plate. By adopting the above technical solution, the two rotating connecting rods, the horizontally arranged machine tool platform and the horizontal connecting rod together form a parallelogram. When the second driving member drives the rotating connecting rod to rotate in the direction close to the workpiece, the horizontal connecting rod will move toward the workpiece, and when the rotating connecting rod rotates to a vertical state, the horizontal connecting rod reaches the highest point. When the rotating connecting rod continues to rotate, the height of the horizontal connecting rod will drop and continue to extend toward the workpiece. When the clamping wheel arranged at the end of the horizontal connecting rod is pressed against the upper surface of the workpiece, the position of the horizontal connecting rod reaches the farthest point of extension. In this way, the rotating mechanism is used to control the extension of the clamping wheel. When the workpiece is pressed, the rotating connecting rod and the horizontal connecting rod move and press on the upper surface of the workpiece; when the workpiece is released, the rotating connecting rod and the horizontal connecting rod move in the other direction and are folded on the abutment plate, and only occupy the height occupied by the clamping wheel or the horizontal connecting rod in the vertical direction, thereby minimizing the space occupied by the moving component in the vertical direction, so that when the moving component moves with the abutment plate, the probability of the moving component interfering with the tool above in the vertical direction is reduced.

[0012] Optionally, the second driving member is a telescopic member, which is installed on the abutment plate along the first direction, and is used to drive the horizontal connecting rod to move along the first direction; the moving assembly also includes a first sliding member, which is arranged along the vertical direction, and the fixed end of the first sliding member is arranged at one end of the horizontal connecting rod close to the telescopic member, and the moving end of the first sliding member is fixedly connected to the moving end of the telescopic member.

[0013] When the second driving member drives the rotating connecting rod to rotate and presses the horizontal connecting rod and the clamping wheel on the workpiece, the rotating assembly needs to provide torque at all times to ensure the clamping force of the horizontal connecting rod and the clamping wheel on the upper surface of the workpiece. Once the rotation torque provided by the second driving member is too small, the horizontal connecting rod and the clamping wheel will fail to clamp the workpiece, resulting in the probability of the workpiece tilting, affecting the processing accuracy. By adopting the above technical solution, the second driving member is set as a telescopic member. When the telescopic member is extended, the moving end of the telescopic member drives the first sliding member and the horizontal connecting rod to move in the direction close to the workpiece. Since the horizontal connecting rod and the rotating connecting rod are rotatably connected, when the horizontal connecting rod is extended, it will make a circular motion with the position of the rotating connecting rod and the abutment plate as the center of the circle under the action of the rotating connecting rod, so that the horizontal connecting rod can be pressed on the upper surface of the workpiece, and at the same time, the horizontal connecting rod will be displaced in the vertical direction. The setting of the first sliding member can provide a sliding connection in the vertical direction for the horizontal connecting rod and the telescopic member. In this way, when the clamping wheel and the horizontal connecting rod are pressed against the upper surface of the workpiece, the workpiece will exert a force on the clamping wheel and the horizontal connecting rod vertically upward, and the horizontal connecting rod will decompose the upward force exerted by the workpiece on the clamping wheel into a smaller horizontal component under the rotation support of the rotating connecting rod. The telescopic part only needs to provide a smaller horizontal force to maintain the clamping wheel and the horizontal connecting rod pressed above the workpiece. Using the telescopic part to support the end of the horizontal connecting rod can save energy consumed when pressing the workpiece.

[0014] Optionally, the telescopic member is a cylinder.

[0015] By adopting the above technical solution, a cylinder is used as a telescopic part to drive the movement of the horizontal connecting rod, which can also improve the response speed of the telescopic part. After controlling the cylinder to extend, the cylinder can be locked in an open state by closing the air source channel. There is no need to consume additional energy required to maintain the compression of the workpiece, thereby further reducing energy consumption.

[0016] Optionally, the moving assembly further comprises a position compensation link, one end of which is fixedly mounted on the horizontal link, the pressure wheel is fixedly mounted on the other end of the position compensation link, and the angle between the position compensation link and the horizontal link is adjustable.

[0017] Since the thickness of the workpiece is not restricted, when the workpiece is thin, conventional technical means need to increase the thickness of the clamping wheel to compact the workpiece, but increasing the thickness of the clamping wheel will increase the space occupied in the vertical direction; when the workpiece is thicker, it is necessary to increase the length of the rotating connecting rod to increase the vertical rising range of the horizontal connecting rod, and each time a workpiece with a thickness exceeding the limit is encountered, parts need to be replaced to adapt to workpieces of different thicknesses, and the operation is too cumbersome.

[0018] By adopting the above technical scheme, a position compensation link is set between the horizontal link and the pressure wheel. When processing a plate with a smaller thickness, the angle between the position compensation link and the horizontal link is adjusted, and the end of the position compensation link connected to the pressure wheel is rotated to be below the end where the position compensation link and the horizontal link are connected, and then the position compensation link and the horizontal link are fixed to lower the height of the pressure wheel, so that a thinner workpiece can be clamped; when processing a plate with a larger thickness, the angle between the position compensation link and the horizontal link is adjusted, and the end of the position compensation link connected to the pressure wheel is rotated to be above the end where the position compensation link and the horizontal link are connected, and then the angle between the position compensation link and the horizontal link is fixed to raise the height of the pressure wheel, so that a thicker workpiece can be clamped. In this way, the height of the clamping wheel can be adjusted by setting a position compensation link. When facing workpieces with large thickness differences, the height of the clamping wheel can be adjusted by adjusting the angle of the position compensation link, so as to clamp workpieces with inconsistent thicknesses. It can clamp workpieces with larger thickness differences, thereby increasing the scope of application of the workpiece clamping and feeding mechanism of the present application.

[0019] Optionally, the side wheel and the abutment plate are connected via a sliding plate, the sliding plate is slidably mounted on the abutment plate along a second direction, and the side wheel is fixedly arranged on a side of the sliding plate close to the workpiece; at least two side wheels with fixed spacing are arranged on the sliding plate.

[0020] When clamping the workpiece, if the edge of the workpiece is arc-shaped or the two opposite edges of the workpiece are not parallel, the side wheels on the edge of the abutment plate will not be able to provide stable clamping for the workpiece. In particular, when the workpiece needs to be moved in the second direction after being clamped by the abutment plate, the side wheels protruding from the side of the abutment plate will block the workpiece in the second direction, resulting in the workpiece being unable to move in the second direction when clamped.

[0021] By adopting the above technical solution, the side wheels are arranged on the abutment plate that can slide in the second direction relative to the abutment plate. When the side wheels clamp the workpiece in use, if the opposite edges of the workpiece are parallel to each other, the side wheels will provide rolling support at the edge of the workpiece when the workpiece moves in the second direction; if the edge of the workpiece is arc-shaped, the two side wheels with fixed spacing on the sliding plate will clamp the workpiece on the arc-shaped edge of the workpiece, and then the sliding plate and the two side wheels fixing the arc-shaped edge of the workpiece will move in the second direction with the workpiece. In this way, the workpiece clamping and feeding mechanism in the present application can not only be used to clamp and fix workpieces with parallel edges, but also to clamp and fix workpieces with arc-shaped edges, thereby increasing the workpieces that the clamping and feeding mechanism in the present application can be used for, and further increasing the scope of application.

[0022] Optionally, the sliding plate is provided with a second sliding member corresponding to the side wheel one by one, the second sliding member is arranged along the first direction, the side wheel is fixedly arranged on the second sliding member, and the position of the side wheel on the second sliding member is adjustable.

[0023] By adopting the above technical solution, when the edge of the workpiece has a large arc or the edges of the workpiece are not parallel, the position of the second sliding member is adjusted to make the side wheels extend or retract in the first direction, so that the two side wheels on the sliding plate extend different distances in the first direction to adapt to the curvature of the edge of the workpiece or the angle between the edge of the workpiece and the side of the abutment plate. When the two side wheels are slidably arranged in the first direction, the distance between the two side wheels in the second direction is fixed, so that the two side wheels can clamp the edge of the workpiece. In this way, by setting the second sliding member, the two side wheels on the sliding plate can be extended to different distances, and workpieces with large edge curvature or inclined edges can be clamped and fixed, thereby increasing the scope of application.

[0024] Optionally, a second sliding plate is slidably provided on the edge of the abutment plate, and the second sliding plate is slidably provided along the second direction. An abutment member is slidably provided on the second sliding plate, and the abutment member is slidably provided along the first direction, and the abutment member is used to abut against the side of the workpiece; a driving assembly is also provided on the abutment plate, and the second sliding plate is transmission-connected to the driving assembly, and the driving assembly is used to drive the second sliding plate to move along the second direction.

[0025] When only one set of workpiece clamping and feeding mechanisms in the present application is used to clamp and fix the workpiece, the workpiece can only be clamped and moved in one direction, and in order to reduce the probability of the workpiece being displaced in the second reverse direction during processing, it is necessary to set another fixing mechanism in the second reverse direction to limit the workpiece in the second direction, and when it is necessary to control the movement of the workpiece in the second direction, it is also necessary to install a drive device in the second direction.

[0026] By adopting the above technical solution, the second sliding plate is arranged to be transmission-connected with the driving mechanism, and the abutment member arranged on the second sliding plate can clamp and fix the workpiece. When the driving mechanism controls the second sliding plate to stop, the workpiece is clamped at the current position by the abutment member arranged on the second sliding plate, and the probability of the workpiece moving in the second direction can be reduced without installing an additional fixing mechanism in the second direction; at the same time, when the workpiece needs to be controlled to move in the second direction, after the abutment member arranged on the second sliding plate clamps the workpiece, the driving component controls the second sliding plate to move in the second direction to drive the workpiece to move in the second direction. In this way, when the driving component controls the second sliding plate to be stationary, the second sliding plate clamps the workpiece on both sides of the workpiece, which can limit the movement of the workpiece in the second direction, eliminating the need to install an additional fixing mechanism in the second direction, saving materials and installation space; after the second sliding plate clamps the workpiece, the driving mechanism can also drive the workpiece to move in the second direction, and a set of workpiece clamping and feeding mechanisms in the present application can be used to control the feeding movement of the workpiece in the first direction and the second direction while clamping the workpiece, saving installation space in the second direction, and improving the movement efficiency and accuracy of the workpiece.

[0027] Optionally, the driving assembly includes: a third driving member fixedly mounted on the abutment plate; a first transmission chain, one end of which is drivingly connected to the third driving member, and the other end of which is fixedly connected to one end of the second sliding plate; a second transmission chain, one end of which is drivingly connected to the third driving member, and the other end of the second transmission chain is fixedly connected to the other end of the second sliding plate; the first transmission chain and the second transmission chain are both arranged along the second direction, and the third driving member drives the second sliding plate to move to one side in the second direction through the first transmission chain, and the third driving member drives the second sliding plate to move to the other side in the second direction through the second transmission chain.

[0028] By adopting the above technical solution, the first transmission chain and the second transmission chain are supported on a plurality of rollers for controlling the extension direction of the transmission chain. When the third driving member rotates forward, the first transmission chain pulls the second sliding plate in the second direction to move in the first direction; when the third driving member rotates reversely, the second transmission chain pulls the second sliding plate in the second direction to move in the second direction. In this way, the second sliding plate can be controlled to move toward both ends along the second direction only by the third driving device, and because the chain transmission method is adopted, the second sliding plate can be connected to the first transmission chain and the second transmission chain, so that a third driving member can simultaneously drive the second sliding plate to move, thereby increasing the contact area between the second sliding plate and the workpiece, making the movement of the workpiece more stable; at the same time, because the chain transmission method is adopted, when driving the second sliding plate to move, the first transmission chain and the second transmission chain can set any extension path, so that the installation position of the third driving member can be flexibly adjusted, the load-bearing capacity of each position of the abutment plate is reasonably distributed, and the probability of interference between the first transmission chain, the second transmission chain and the third driving member and other components is reduced.

[0029] A second aspect: The present invention provides a drilling machine tool, which adopts the following technical solution: A drilling machine tool, characterized in that it is equipped with the workpiece clamping and feeding mechanism as described in the first aspect.

[0030] By adopting the above technical scheme, when the drilling machine tool processes the workpiece, the workpiece clamping and feeding mechanism described in the first aspect can clamp the workpiece, and drive the workpiece to move simultaneously along the length and width directions of the machine tool while clamping the workpiece. Driving the workpiece to move while the workpiece is clamped and fixed can effectively increase the speed of the workpiece movement; enabling the workpiece to move simultaneously in two directions can improve the movement efficiency of the workpiece, thereby improving the processing speed of the workpiece; the workpiece clamping and feeding mechanism is arranged along the length direction of the machine tool, and there is no need to install an additional fixing mechanism or driving mechanism in the width direction of the machine tool, so that the material can be fed in the width direction of the machine tool, and the space is reasonably utilized.

[0031] In summary, the present invention includes at least one of the following beneficial technical effects: By arranging side wheels on the abutment plate, when the workpiece clamping and feeding mechanism clamps the workpiece, the side wheels can provide rolling support for the workpiece, clamp the workpiece in the first direction and limit the workpiece in the second direction, so that when the workpiece moves in the first direction as the clamping and feeding mechanism moves, it can move synchronously in the second direction while being clamped, thereby increasing the movement speed of the workpiece when it needs to be fed in two directions, thereby improving the processing efficiency of the workpiece.

[0032] By arranging a moving component on the abutment plate and driving the clamping wheel to clamp above the workpiece surface, the probability of the edge of the workpiece lifting can be reduced, thereby improving the stability of the workpiece during movement; at the same time, the moving component is arranged to have a structure that rotates and extends at the side edge of the abutment plate, which can effectively reduce the space occupied by the moving component in the vertical direction, thereby reducing the probability of interference between the moving component and the tool moving above the machine tool.

[0033] The side wheels on the abutment plate used for rolling support on the side of the workpiece are arranged to have a structure capable of adjusting the extension distance, and two side wheels with a fixed spacing in the second direction are arranged on the first sliding plate, so that the first sliding plate can drive the side wheels to move synchronously along the edge of the abutment plate and the workpiece, and the uneven edge of the workpiece can be clamped and fixed by adjusting the extension distance of the two side wheels, and when the side wheels clamp the workpiece, the side wheels and the first sliding plate move together with the workpiece, thereby enabling the workpiece clamping and feeding mechanism in the present application to clamp the workpiece with uneven edges and drive the workpiece to move.

[0034] A second sliding plate is also slidably arranged on the abutment plate, and the second sliding plate is transmission-connected to the driving assembly. After the second sliding plate clamps the workpiece, the driving assembly drives the second sliding plate to drive the workpiece to move along the side of the abutment plate, so that the workpiece clamping and feeding mechanism in the present application can simultaneously control the feeding of the workpiece in two directions while clamping the workpiece, thereby improving the workpiece movement efficiency and the workpiece feeding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A; Figure 3 is a schematic diagram of the connection structure between the side wheels and the sliding plate in an embodiment of the present invention; Figure 4 is a schematic diagram of a folded state of a moving component in an embodiment of the present invention; Figure 5 It is a schematic diagram of the unfolded state of the mobile component in an embodiment of the present invention.

[0036] Explanation of the accompanying drawings: 100, abutment plate; 200, first driving member; 300, limit member; 400, roller assembly; 410, side wheel; 420, pressure wheel; 430, moving assembly; 431, rotating connecting rod; 432, horizontal connecting rod; 433, telescopic member; 434, first sliding member; 435, position compensation connecting rod; 500, first sliding plate; 510, second sliding member; 520, second sliding plate; 530, abutment member; 600, driving assembly; 610, first transmission chain; 620, second transmission chain; 630, third driving member. DETAILED DESCRIPTION

[0037] In the background technology, when drilling a plate, in order to ensure the stability of the tool during movement as much as possible and reduce the probability of the tool interfering with the table of the machine tool when penetrating the plate, a hollow position is usually set in the middle of the machine tool table, and the tool is restricted to move only above the hollow position. When processing different positions of the plate, the plate's to-be-processed position needs to be fixed above the hollow area of ​​the table so that the plate's to-be-processed area corresponds to the tool. The plate is usually large in size and the areas to be processed are often distributed at different positions of the plate. Therefore, when drilling a plate, a feeding mechanism is required to drive the plate to move relative to the hollow position of the table, and a clamping device is used to fix the plate at the current position after the plate's to-be-processed area is aligned with the hollow area of ​​the table.

[0038] In the prior art, two groups of clamping mechanisms that can control the movement of the plate in one direction are usually used to control the movement of the plate. Specifically, after the first group of clamping mechanisms clamps the plate, the first group of clamping mechanisms and the plate are driven to move in the first direction by a driving device, so that the plate moves to a set position in one direction. Secondly, the first group of clamping mechanisms is released, and the second group of clamping mechanisms is used to clamp the plate. The second group of clamping mechanisms and the plate are driven to move to a set position in another direction by another driving device to complete the movement of the plate. In this technical solution, when the first group of clamping mechanisms or the second group of clamping mechanisms clamps the plate, the clamping mechanisms and the plate are both fixedly arranged. Therefore, one group of clamping mechanisms needs to be released before the other group of clamping mechanisms moves to drive the plate to move. Especially when the plate needs to move in two directions, the two groups of clamping mechanisms need to work in sequence, affecting the processing efficiency.

[0039] If the first group of clamping devices and the corresponding driving devices are fixedly set on the second group of clamping devices, when the second group of clamping devices moves, they will also drive the first group of clamping devices fixed on the second group of clamping devices and the plate to move together. Because the first group of clamping devices needs to clamp on both sides of the plate, the first group of clamping devices is affected by the size of the plate, resulting in a larger size of the second group of clamping devices installed with the first group of clamping devices, which increases the burden on the driving device and generates more energy consumption.

[0040] The following combination Figures 1 to 5 The present invention is described in further detail.

[0041] The embodiment of the present invention discloses a drilling machine tool. The drilling machine tool mainly includes a machine table, a tool installed on the machine tool, and a workpiece clamping and feeding mechanism slidably installed on the machine tool. Figure 1 to Figure 2, wherein the workpiece clamping and feeding mechanism includes two relatively arranged pushing mechanisms, each pushing mechanism includes an abutment plate 100 slidably arranged on the machine tool, and the abutment plate 100 is installed with a first driving member 200 for driving the abutment plate 100 to move along the length direction of the machine tool and a limit member 300 for limiting the movement of the abutment plate 100 in the length direction of the machine tool. The side of the abutment plate 100 is also provided with a side wheel 410 for rolling support on the side of the workpiece and a clamping wheel 420 for rolling support above the workpiece, and the clamping wheel 420 is driven by a moving component 430 fixedly arranged on the abutment plate 100.

[0042] When the workpiece clamping and feeding mechanism moves on the machine tool while clamping the workpiece, the two relatively arranged pushing mechanisms are driven by the first driving member 200 to move toward the direction close to the workpiece, so that the workpiece is clamped between the two abutment plates 100. When the abutment plates 100 clamp the workpiece, the side wheels 410 abut against the side edges of the workpiece to provide rolling support for the side edges of the workpiece, and the clamping wheel 420 is driven by the moving component 430 to press above the workpiece and provide rolling support on the top of the workpiece.

[0043] Subsequently, when the workpiece clamping and feeding mechanism clamps the workpiece and moves it, the two relatively arranged pushing mechanisms clamp the workpiece, and the two pushing mechanisms are driven by the first driving member 200 to move synchronously along the length direction of the machine tool, and drive the workpiece to move on the machine tool; at this time, if the workpiece needs to move along the width direction of the machine tool, there is no need to loosen the two relatively arranged pushing mechanisms, and a pushing mechanism can be directly set in the width direction of the machine tool to drive the workpiece to move along the width direction of the machine tool, thereby improving the movement efficiency of the workpiece.

[0044] Reference Figure 1 and Figure 2 The abutment plate 100 extends along the width direction of the machine tool, and a first driving member 200 is arranged on one side of the abutment plate 100 close to the side of the machine tool. The first driving member 200 is driven by a motor, and the output shaft of the motor is perpendicular to the length direction of the machine tool and a gear is arranged on the output shaft. A rack is fixedly arranged on the side of the machine tool, and the rack is arranged along the length direction of the machine tool. The gear is matched with the rack on the machine tool so that the abutment plate 100 can be moved along the length direction of the machine tool under the drive of the motor. In other embodiments, the first driving member 200 can also drive the abutment plate 100 to move on the machine tool by using a lead screw or a driving wheel and a track.

[0045] Reference Figure 1The abutment plate 100 is provided with a first driving member 200 and a limiting member 300 on its side. The limiting member 300 is a guide rail arranged in cooperation with the track of the machine tool. The guide rail is arranged on the upper end surface of the abutment plate 100 along the length direction of the machine tool. When the abutment plate 100 moves along the length direction of the machine tool, the guide rail can limit the abutment plate 100 so that the abutment plate 100 can move along the length direction of the machine tool. In order to improve the stability of the abutment plate 100 during movement, a second guide rail is arranged on the side of the abutment plate 100 away from the first driving member 200. The second guide rail is arranged on the lower end surface of the abutment plate 100 and is arranged parallel to the length direction of the machine tool. The second guide rail can play a supporting role while playing a limiting role. It can support the abutment plate 100 at the other end below the abutment plate 100 to improve the stability of the abutment plate 100 during movement.

[0046] Reference Figures 1 to 3 The edge of the abutment plate 100 close to the workpiece is a straight edge, and a slide groove perpendicular to the length direction of the machine tool is provided. Two first sliding plates 500 are installed in the slide groove, and two rollers are fixedly provided at one end of the first sliding plate 500, and the two rollers are both rollingly set in the slide groove, so that the first sliding plate 500 can slide along the edge of the abutment plate 100, and a second sliding member 510 arranged along the length direction of the machine tool is provided on the first sliding plate 500. There are two second sliding members 510, and the second sliding member 510 is a long strip groove opened on the first sliding plate 500, and a fastening bolt is provided in the groove. The side wheel 410 is fixed in the groove by the fastening bolt. When the fastening bolt is fixed, the position of the side wheel 410 in the groove is fixed. When the fastening bolt is loosened, the extended position of the side wheel 410 in the groove can be adjusted, so that the two side wheels 410 on the first sliding plate 500 are fixed in the width direction of the machine tool, and the position in the length direction of the machine tool is adjustable.

[0047] In other embodiments, the second sliding member 510 may also be a linear sliding mechanism such as a slide rail, a telescopic connecting rod, etc. that can be arranged along the length direction of the machine tool.

[0048] Reference Figures 1 to 3 A second sliding plate 520 is also slidably provided on the edge of the abutment plate 100. The second sliding plate 520 has the same structure as the first sliding plate 500. The abutment 530 installed on the second sliding plate 520 has the same structure as the side wheel 410 installed on the first sliding plate 500. The only difference is that the abutment 530 on the second sliding plate 520 cannot rotate, so that the abutment 530 cannot perform rolling support when it contacts the workpiece. In this embodiment, the abutment 530 can adopt a locked side wheel 410 or a fixed abutment block. The abutment 530 also adopts a method of setting a fastening bolt in the groove to adjust the position of the abutment 530 on the abutment plate 100.

[0049] Reference Figure 1 to Figure 2 A driving assembly 600 is also arranged above the abutment plate 100, and the driving assembly 600 includes a third driving member 630, a first transmission chain 610 and a second transmission chain 620, wherein the third driving member 630 adopts a motor, a pulley is fixedly arranged on the output shaft of the motor, a lock is fixedly arranged on the upper end surface of the second sliding plate 520, one end of the first transmission chain 610 is connected to the lock above the second sliding plate 520, one end of the second transmission chain 620 is connected to the other end of the lock on the second sliding plate 520, the first transmission chain 610 and the second transmission chain 620 are arranged in a direction parallel to the slide groove, and the other end of the first transmission chain 610 and the second transmission chain are connected to the second sliding plate 520. The other end of the moving chain 620 is connected by a belt, and a plurality of pulleys are fixedly provided on the upper end surface of the abutment plate 100. The belt connecting the first transmission chain 610 and the second transmission chain 620 passes through a plurality of pulleys to adjust the direction and then is connected to the pulley on the motor output shaft, so that when the motor rotates forward, the belt pulls the first transmission chain 610 to drive the second sliding plate 520 to move toward one side of the machine tool in the width direction of the machine tool; when the motor reverses, the belt pulls the second transmission chain 620 to drive the second sliding plate 520 to move toward the other side of the machine tool in the width direction of the machine tool, thereby controlling the movement of the second sliding plate 520 through the third driving member 630.

[0050] In other embodiments, the first transmission chain 610 and the second transmission chain 620 can adopt chain transmission methods such as belts, toothed chains, roller chains, etc., and the locks on multiple second sliding plates 520 can be locked on the first transmission chain 610 and the second transmission chain 620 at the same time to achieve synchronous movement of multiple second sliding plates 520.

[0051] Reference Figures 1 to 4A moving assembly 430 for driving the clamping wheel 420 is also provided above the abutment plate 100. The moving assembly 430 includes a telescopic member 433 fixedly provided above the abutment plate 100, a first sliding member 434 fixedly connected to the moving end of the telescopic member 433, two rotating connecting rods 431 rotatably provided on the abutment plate 100, and a horizontal connecting rod 432 connected to the rotating connecting rod 431. The telescopic member 433 adopts a cylinder. The cylinder is provided above the abutment plate 100 along the length direction of the machine tool. When the cylinder is extended, the piston rod of the cylinder moves toward the direction close to the workpiece. A bearing seat is provided on the upper surface of one end of the abutment plate 100 close to the workpiece. The bearing seat is provided along the length direction of the machine tool. One end of the two rotating connecting rods 431 is rotatably connected to the bearing seat. The other ends of the two rotating connecting rods 431 are They are all rotatably connected to the horizontal connecting rod 432, and the horizontal connecting rod 432 is arranged along the length direction of the machine tool. The horizontal connecting rod 432 is rotatably connected to the abutment plate 100 through two rotating connecting rods 431, so that the bearing seat, the horizontal connecting rod 432 and the two rotating connecting rods 431 form a parallelogram structure. When the horizontal connecting rod 432 moves along the length direction of the machine tool, it can move synchronously in the vertical direction, thereby controlling the clamping wheel 420 at the end of the horizontal connecting rod 432 to be pressed on the upper surface of the workpiece; the fixed end of the first sliding member 434 is arranged in the vertical direction at one end of the horizontal connecting rod 432 close to the telescopic member 433, and the moving end of the first sliding member 434 is fixedly connected to the piston rod of the cylinder, so that the horizontal connecting rod 432 and the piston rod of the cylinder can slide in the vertical direction through the first sliding member 434.

[0052] When the piston rod of the cylinder is extended, the piston abuts against the end of the horizontal connecting rod 432 and pushes the horizontal connecting rod 432 toward the workpiece. The horizontal connecting rod 432 is rotatably connected to the abutment plate 100 by the rotating connecting rod 431, so that the horizontal connecting rod 432 will first rise and then fall during the extension process, and abut against the upper surface of the workpiece during the final falling process, pressing the workpiece against the machine tool.

[0053] In this embodiment, the first sliding member 434 can adopt a linear limiting mechanism such as a slide rail, a slide groove or a guide rod that can limit the sliding of the horizontal connecting rod 432 and the telescopic member 433 in the vertical direction.

[0054] Reference Figure 4 and Figure 5A position compensation link 435 is also provided between the horizontal link 432 and the clamping wheel 420. One end of the position compensation link 435 is fixed to the end of the horizontal link 432 close to the workpiece by bolts, and the clamping wheel 420 is fixed to the other end of the position compensation link 435 by bolts. When the bolts between the position compensation link 435 and the horizontal link 432 are adjusted to be loose, the position compensation link 435 can be rotated in a vertical plane along the width direction of the machine tool, thereby adjusting the height of the clamping wheel 420 relative to the horizontal link 432. In other embodiments, the position compensation link 435 can also be a link with a slide groove provided in the vertical direction. The height of the clamping wheel 420 relative to the horizontal link 432 can also be adjusted by placing the horizontal link 432 or the clamping wheel 420 in the slide groove in the vertical direction.

[0055] The implementation principle of a drilling machine tool in an embodiment of the present invention is as follows: when in use, the workpiece is placed on the table of the machine tool, and then the two relatively arranged pushing components in the workpiece clamping and feeding mechanism move toward the workpiece on both sides of the workpiece respectively, and the abutment plate 100 is used to clamp the workpiece on both sides, and then, with the cooperation of the first driving member 200 and the limiting member 300 arranged on the abutment plate 100, the abutment plate 100 clamps the workpiece and moves along the length direction of the machine tool, and controls the feed amount of the workpiece under the control of the first driving member 200; during the process of clamping the workpiece by the abutment plate 100, the abutment plate 100 clamps the side edge of the workpiece through the second sliding plate 520 and the side wheels 410 on the first sliding plate 500, and because the second sliding plate 520 is transmission-connected to the driving component 600, the movement of the driving component 600 can be limited when the driving component 600 is stationary, thereby The workpiece is upper-limited in the width direction of the machine tool; when the workpiece needs to move along the width direction of the machine tool, the driving component 600 drives the second sliding plate 520 to move along the width direction of the machine tool, so that the workpiece clamped by the second sliding plate 520 can move along the width direction of the machine tool with the second sliding plate 520; at the same time, when the abutment plate 100 clamps the workpiece, the clamping wheel 420 arranged on the side of the abutment plate 100 close to the workpiece will be pressed on the upper surface of the workpiece under the drive of the moving component 430, thereby improving the stability of the workpiece; when clamping a workpiece with uneven edges, the extension distance of the side wheel 410 on the first sliding plate 500 and the extension distance of the abutment 530 on the second sliding plate 520 can be adjusted, so as to achieve clamping of the workpiece with uneven edges, and control the workpiece to move along the width direction of the machine tool after clamping the workpiece with uneven edges.

[0056] In summary, the present application provides side wheels 410 on the side of the abutment plate 100. When clamping the workpiece, the side wheels 410 on the abutment plate 100 provide rolling support for the workpiece, so that the workpiece can be clamped in the first direction and limited in the second direction, so that when the workpiece moves in the first direction as the clamping feed mechanism moves, it can be synchronously moved in the second direction while being clamped, thereby improving the movement speed of the workpiece when it needs to be fed in two directions; a moving component 430 is provided on the abutment plate 100, and a driving component 600 is used to drive the clamping wheel 420 to press on the upper surface of the workpiece, thereby improving the stability of the workpiece during movement; the moving component 430 is set to a rotating and extending structure, which effectively reduces the space occupied by the moving component 430 in the vertical direction, and reduces the probability of interference between the moving component 430 and the tool moving above the machine tool; two side wheels 410 with a fixed spacing in the second direction are arranged The first sliding plate 500 is arranged, and the side wheels 410 are arranged to have an adjustable extension distance. The uneven edge of the workpiece can be clamped and fixed by adjusting the extension distance of the two side wheels 410. When the side wheels 410 clamp the workpiece, the side wheels 410 and the first sliding plate 500 move together with the workpiece, so as to clamp the workpiece with an uneven edge and drive the workpiece to move. A second sliding plate 520 is also slidably arranged on the abutment plate 100, and the second sliding plate 520 is transmission-connected to the driving assembly 600. After the second sliding plate 520 clamps the workpiece, the driving assembly 600 drives the second sliding plate 520 to drive the workpiece to move along the side of the abutment plate 100 abutting against the workpiece, so that the workpiece clamping and feeding mechanism in the present application can simultaneously control the feeding of the workpiece in two directions when the workpiece is clamped, thereby improving the workpiece movement efficiency and the workpiece feeding accuracy.

[0057] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A workpiece clamping and feeding mechanism, comprising at least two pushing mechanisms arranged opposite to each other, the pushing mechanisms comprising an abutment plate (100), a first driving member (200) for controlling the abutment plate (100) to move in a first direction, and a limiting member (300) for limiting the movement of the abutment plate (100) in the first direction, characterized in that: A roller assembly (400) is provided on one side of the abutment plate (100) close to the workpiece, and the roller assembly (400) comprises: A plurality of side wheels (410) are fixedly arranged on a side of the abutment plate (100) close to the workpiece, the plurality of side wheels (410) are arranged along a second direction, the second direction is perpendicular to the first direction in a horizontal plane, and the side wheels (410) are used for rolling support on the side of the workpiece; A clamping wheel (420), wherein the axial direction of the clamping wheel (420) is parallel to the first direction, the clamping wheel (420) is installed above the abutment plate (100) via a moving assembly (430), the moving assembly (430) is used to drive the clamping wheel (420) to abut against the upper end surface of the workpiece, and the clamping wheel (420) is used to provide rolling support for the upper end surface of the workpiece.

2. A workpiece clamping and feeding mechanism according to claim 1, characterized in that: The moving component (430) comprises: Two rotating connecting rods (431), one end of each of the two rotating connecting rods (431) being rotatably mounted on the abutment plate (100); A horizontal connecting rod (432) is arranged along the first direction, and the other ends of the two rotating connecting rods (431) are both rotatably mounted on the horizontal connecting rod (432); A second driving member, fixedly mounted on the abutment plate (100), and used for driving the rotating connecting rod (431) to rotate; The clamping wheel (420) is mounted on an end of the horizontal connecting rod (432) close to the workpiece.

3. A workpiece clamping and feeding mechanism according to claim 2, characterized in that: The second driving member is a telescopic member (433), the telescopic member (433) being mounted on the abutment plate (100) along a first direction, and the telescopic member (433) being used to drive the horizontal connecting rod (432) to move along the first direction; The moving assembly (430) further comprises a first sliding member (434), the first sliding member (434) being arranged in a vertical direction, the fixed end of the first sliding member (434) being arranged at an end of the horizontal connecting rod (432) close to the telescopic member (433), and the moving end of the first sliding member (434) being fixedly connected to the moving end of the telescopic member (433).

4. A workpiece clamping and feeding mechanism according to claim 2, characterized in that: The moving assembly (430) further comprises a position compensation link (435), one end of the position compensation link (435) being fixedly mounted on the horizontal link (432), the pressure wheel (420) being fixedly mounted on the other end of the position compensation link (435), and the angle between the position compensation link (435) and the horizontal link (432) being adjustable.

5. A workpiece clamping and feeding mechanism according to any one of claims 1 to 4, characterized in that: The side wheel (410) and the abutment plate (100) are connected via a first sliding plate (500); the first sliding plate (500) is slidably mounted on the abutment plate (100) along a second direction; and the side wheel (410) is fixedly arranged on a side of the first sliding plate (500) close to the workpiece; At least two side wheels (410) are arranged on the first sliding plate (500) at a fixed interval in the second direction.

6. A workpiece clamping and feeding mechanism according to claim 5, characterized in that: The first sliding plate (500) is provided with a second sliding member (510) corresponding one to one with the side wheel (410); the second sliding member (510) is arranged along a first direction; the side wheel (410) is fixedly arranged on the second sliding member (510); and the position of the side wheel (410) on the second sliding member (510) is adjustable.

7. A workpiece clamping and feeding mechanism according to claim 6, characterized in that: A second sliding plate (520) is also slidably arranged at the edge of the abutment plate (100), the second sliding plate (520) is slidably arranged along the second direction, an abutment member (530) is slidably arranged on the second sliding plate (520), the abutment member (530) is slidably arranged along the first direction, and the abutment member (530) is used to abut against the side edge of the workpiece; A driving assembly (600) is also provided on the abutment plate (100), and the second sliding plate (520) is transmission-connected to the driving assembly (600), and the driving assembly (600) is used to drive the second sliding plate (520) to move along the second direction.

8. A workpiece clamping and feeding mechanism according to claim 7, characterized in that: The driving assembly (600) comprises: A third driving member (630) is fixedly mounted on the abutment plate (100); a first transmission chain (610), one end of which is transmission-connected to the third driving member (630), and the other end of which is fixedly connected to one end of the second sliding plate (520); A second transmission chain (620), one end of which is transmission-connected to the third driving member (630), and the other end of the second transmission chain (620) is fixedly connected to the other end of the second sliding plate (520); The first transmission chain (610) and the second transmission chain (620) are both arranged along the second direction; the third driving member (630) drives the second sliding plate (520) to move to one side in the second direction via the first transmission chain (610); and the third driving member (630) drives the second sliding plate (520) to move to the other side in the second direction via the second transmission chain (620).

9. A drilling machine tool, characterized in that: A workpiece clamping and feeding mechanism as described in any one of claims 1 to 8 is installed.

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