Auxiliary positioning mechanism and machine tool

Abstract

The utility model provides an auxiliary positioning mechanism and a machine tool, the auxiliary positioning mechanism comprises a base, a positioning plate and a driving piece, the positioning plate is provided with a connecting surface and a positioning surface, the connecting surface and the positioning surface are oppositely arranged, and the positioning plate is movably connected with the base; the driving end of the driving part is connected to the positioning plate, so that the positioning plate slides or rotates to an initial state or a positioning state on the base along with the driving of the driving part; when the positioning plate is in the positioning state, the positioning face of the positioning plate is vertically arranged and can abut against one end face of the workpiece so as to position one end of the workpiece. When the positioning plate is in the initial state, the positioning plate is located below the horizontal plane where the bottom face of the workpiece is located. During machining, the driving part drives the positioning plate to be switched to the positioning state so as to position one side of the to-be-machined workpiece, or after machining is completed, the driving part drives the positioning plate to be switched to the initial state so that the machined workpiece can be detached from the machine tool.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerically controlled machine tools, and in particular relates to an auxiliary positioning mechanism and a machine tool. Background Art

[0002] CNC machine tools are commonly used processing equipment in mechanical parts processing. Their main advantages include simple operation, high processing efficiency, and precise processing. They are widely used in various processing fields.

[0003] At present, the existing CNC machine tools usually only use a single type of fixture to clamp and fix the two sides of the workpiece before processing the workpiece, such as vise jaws, etc. At this time, the two ends of the workpiece are in an unpositioned state. When processing a long workpiece, due to the long length of the workpiece, only the two sides of the workpiece are clamped by the fixture, and no corresponding auxiliary positioning mechanism is set at one or both ends of the workpiece, resulting in poor positioning effect for the long workpiece, thereby affecting the processing accuracy. So that during the processing, the workpiece is easy to move in the direction of the two unfixed ends, Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides an auxiliary positioning mechanism and a machine tool to solve the problem that the prior art has no corresponding auxiliary positioning mechanism to assist the tooling fixture to position the workpiece, resulting in poor positioning effect for long workpieces, thereby affecting the processing accuracy.

[0005] One embodiment of the present invention provides an auxiliary positioning mechanism, comprising:

[0006] Base,

[0007] A positioning plate, comprising a connecting surface and a positioning surface, wherein the connecting surface is arranged opposite to the positioning surface, and the positioning plate is movably connected to the base;

[0008] A driving member, wherein a driving end of the driving member is connected to the positioning plate, so that the positioning plate slides or rotates on the base to an initial state or a positioning state as driven by the driving member;

[0009] Wherein, when the positioning plate is in the positioning state, the positioning surface of the positioning plate is vertically arranged and can abut against one end surface of the workpiece to position one end of the workpiece;

[0010] When the positioning plate is in an initial state, the positioning plate is below the horizontal plane where the bottom surface of the workpiece is located.

[0011] In this embodiment, since the positioning plate is movably connected to the base, and the driving end of the movable member is connected to the positioning plate, the positioning plate slides or rotates on the base to an initial state or a positioning state as driven by the driving member. During processing, the driving member drives the positioning plate to switch to the positioning state to achieve positioning of one side of the workpiece to be processed, or after processing is completed, the driving member drives the positioning plate to switch to the initial state to facilitate the removal of the processed workpiece from the machine tool.

[0012] In one embodiment, the base includes two mounting seats arranged opposite to each other, a rotating member is arranged on the mounting seats, the positioning plate is arranged between the two mounting seats, and the positioning plate is connected to the rotating member so as to be rotatably connected to the two mounting seats respectively through the rotating member.

[0013] In this embodiment, since a rotating part is provided on the mounting seat, the positioning plate is provided between the two mounting seats, and the positioning plate is connected to the rotating part so that the positioning plate is rotatably connected to the mounting seat through the rotating part, thereby facilitating the positioning plate to be quickly switched to an initial state or a positioning state, thereby achieving unlocking (i.e., releasing the positioning of the workpiece) or positioning of the workpiece.

[0014] In one of the embodiments, a connecting rod is installed on the positioning plate, and a ring which is sleeved with the connecting rod is installed on the driving end of the driving member.

[0015] In this embodiment, a connecting rod is installed on the positioning plate, and a ring is installed on the driving end of the driving member, and the ring is movably connected to the connecting rod so that the ring can rotate with the connecting rod. When the driving member is working, the connecting rod is pulled or pushed by the ring, thereby driving the connecting rod to rotate with the rotating rod as the axis. Since the ring can rotate with the connecting rod, interference with the rotation of the positioning plate is avoided, so that the positioning plate is rotated to the initial state or the positioning state, thereby unlocking the workpiece (i.e., releasing the positioning of the workpiece) or positioning it.

[0016] In one embodiment, the rotating member includes a bearing, and the bearing is sleeved on the mounting seat. Rotating rods are respectively provided at both ends of the positioning plate, and the rotating rods at both ends of the positioning plate are respectively sleeved with the bearings on the two mounting seats.

[0017] In this embodiment, the bearing is installed on the mounting seat, and the bearing is sleeved with the mounting seat through the outer ring, and is sleeved with the rotating rod of the positioning plate through the inner ring, so that the positioning plate is driven by the driving member to rotate through the bearing and the mounting seat, thereby quickly switching to the initial state or the positioning state, thereby achieving unlocking (i.e., releasing the positioning of the workpiece) or positioning of the workpiece.

[0018] In one embodiment, the mounting seat is provided with a limiting surface, and the limiting surface is horizontally arranged; the mounting seat is also provided with a limiting member, and the end surface of the limiting member is vertically arranged to the limiting surface, wherein, when the driving member is working, the connecting surface of the positioning plate is driven by the driving member to abut against the limiting surface or the end surface of the limiting member, so that the positioning plate is in the initial state or the positioning state.

[0019] In this embodiment, the positioning plate is limited by the limiting surface and the end of the limiting member respectively to ensure that the positioning plate is accurately rotated to the angle corresponding to the initial state or the positioning state, thereby ensuring accurate control of the movement of the positioning plate and accurate positioning of the workpiece.

[0020] In one embodiment, the driving member comprises a cylinder;

[0021] When the positioning plate is in the initial state, the cylinder retracts so that the positioning surface of the positioning plate flips from a vertical state to a horizontal state, and the connecting surface of the positioning plate abuts against the limiting surface;

[0022] When the positioning plate is in the positioning state, the cylinder extends to flip the positioning surface of the positioning plate from a horizontal state to a vertical state, and the connecting surface of the positioning plate abuts against the end surface of the limiting member.

[0023] In this embodiment, the positioning plate is driven by a cylinder to rotate along the axis of the rotating rod or the bearing, so that the positioning plate can be switched between a horizontal state and a vertical state, thereby facilitating unlocking or positioning of the workpiece.

[0024] In one of the embodiments, a slide rail is installed on the base, a slider is slidably connected to the slide rail, and the connecting surface of the positioning plate is connected to the slider.

[0025] In this embodiment, since a slide rail is installed on the base, the connecting surface of the positioning plate is connected to the slider, and the slider is slidably connected to the slide rail, so that the positioning plate slides up and down along the slide rail under the drive of the driving member, thereby positioning and unlocking the workpiece.

[0026] In one embodiment, the slide rail is vertically arranged, and when the driving member is working, the positioning plate reciprocates up and down along the sliding direction of the slide rail driven by the driving member, so that the positioning plate is in the initial state or the positioning state.

[0027] In one embodiment, the driving member comprises a cylinder;

[0028] When the positioning plate is in an initial state, the cylinder retracts to make the positioning plate drop below the horizontal plane where the bottom surface of the workpiece is located;

[0029] When the positioning plate is in the positioning state, the cylinder extends to make the positioning plate rise to a preset position where it can abut against one end surface of the workpiece.

[0030] In this embodiment, the positioning plate is driven by the cylinder to move up and down along the sliding direction of the slide rail, thereby facilitating unlocking or positioning of the workpiece.

[0031] One embodiment of the utility model provides a machine tool, which is equipped with an auxiliary positioning mechanism as described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the structure of an auxiliary positioning mechanism provided in one embodiment of the utility model installed on a machine tool;

[0034] Figure 2 for Figure 1 A schematic diagram of the side view of the auxiliary positioning mechanism installed on the machine tool;

[0035] Figure 3 for Figure 1 A schematic diagram of the top view of the auxiliary positioning mechanism installed on the machine tool;

[0036] Figure 4 for Figure 3 A partial enlarged schematic diagram of the auxiliary positioning mechanism A in FIG.

[0037] Figure 5 for Figure 1 A schematic diagram of the connection structure between the positioning plate and the driving member;

[0038] Figure 6 A schematic structural diagram of an auxiliary positioning mechanism provided in another embodiment of the utility model;

[0039] Figure 7 for Figure 6 A schematic diagram of the side structure of the auxiliary positioning mechanism;

[0040] Figure 8 for Figure 6 A schematic front view of the auxiliary positioning mechanism in FIG.

[0041] Fig. 9 for Figure 6Schematic diagram of a top view of the auxiliary positioning mechanism.

[0042] Figure numbers: 1. base, 11. mounting seat, 111. rotating part, 112. limiting surface, 113. limiting part, 12. slide rail, 121. slider, 2. positioning plate, 21. connecting rod, 22. rotating rod, 3. driving part, 31. collar, 4. machine tool. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0045] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0046] See also Figure 1-9 One embodiment of the utility model provides an auxiliary positioning mechanism, including:

[0047] Base 1,

[0048] A positioning plate 2, having a connecting surface and a positioning surface, wherein the connecting surface and the positioning surface are arranged opposite to each other, and the positioning plate 2 is movably connected to the base 1;

[0049] A driving member 3, wherein a driving end of the driving member 3 is connected to the positioning plate 2, so that the positioning plate 2 slides or rotates on the base 1 to an initial state or a positioning state as driven by the driving member 3;

[0050] Wherein, when the positioning plate 2 is in the positioning state, the positioning surface of the positioning plate 2 is vertically arranged and can abut against one end surface of the workpiece to position one end of the workpiece;

[0051] When the positioning plate 2 is in an initial state, the positioning plate 2 is below the horizontal plane where the bottom surface of the workpiece is located.

[0052] In this embodiment, since the positioning plate 2 is movably connected to the base 1, and the driving end of the movable member is connected to the positioning plate 2, the positioning plate 2 slides or rotates on the base 1 to an initial state or a positioning state driven by the driving member 3. During processing, the driving member 3 drives the positioning plate 2 to switch to the positioning state so as to position one side of the workpiece to be processed, or after the processing is completed, the driving member 3 drives the positioning plate 2 to switch to the initial state, so as to facilitate the removal of the processed workpiece from the machine tool 4.

[0053] The auxiliary positioning mechanism eliminates the need to move the cutter head to a long distance to align the workpiece sideways, which can greatly improve processing efficiency and is easy to operate. The workpiece only needs to be placed between the movable jaw and the positioning jaw. At the same time, a more stable positioning effect of the workpiece can be achieved by using the first drive member 3, thereby improving processing accuracy, stability and safety, and saving manpower and production costs.

[0054] See also Figure 1-5 In one embodiment, the base 1 includes two oppositely arranged mounting seats 11, and a rotating member 111 is provided on the mounting seats 11. The positioning plate 2 is arranged between the two mounting seats 11, and the positioning plate 2 is connected to the rotating member 111 so as to be rotatably connected to the two mounting seats 11 respectively through the rotating member 111.

[0055] In this embodiment, since a rotating member 111 is provided on the mounting seat 11, the positioning plate 2 is provided between the two mounting seats 11, and the positioning plate 2 is connected to the rotating member 111, so that the positioning plate 2 is rotatably connected to the mounting seat 11 through the rotating member 111, thereby facilitating the positioning plate 2 to be quickly switched to an initial state or a positioning state, thereby achieving unlocking (i.e., releasing the positioning of the workpiece) or positioning of the workpiece.

[0056] See also Figure 3 and Figure 5 In one embodiment, the positioning plate 2 is provided with a connecting rod 21 , and the driving end of the driving member 3 is provided with a collar 31 which is sleeved with the connecting rod 21 .

[0057] In this embodiment, the connecting rod 21 is installed on the positioning plate 2, and the ring 31 is installed on the driving end of the driving member 3, and the ring 31 is movably connected to the connecting rod 21 so that the ring 31 can rotate with the connecting rod 21. When the driving member 3 is working, the connecting rod 21 is pulled or pushed by the ring 31, thereby driving the connecting rod 21 to rotate with the rotating rod 22 as the axis. Since the ring 31 can rotate with the connecting rod 21, interference with the rotation of the positioning plate 2 is avoided, so that the positioning plate 2 is rotated to the initial state or the positioning state, thereby realizing unlocking (i.e., releasing the positioning of the workpiece) or positioning.

[0058] See also Figure 5 In one embodiment, the rotating member 111 includes a bearing, and the bearing is sleeved on the mounting seat 11. Rotating rods 22 are respectively provided at both ends of the positioning plate 2. The rotating rods 22 at both ends of the positioning plate 2 are respectively sleeved with the bearings on the two mounting seats 11.

[0059] In this embodiment, the bearing is installed on the mounting seat 11, and the bearing is sleeved with the mounting seat 11 through the outer ring, and is sleeved with the rotating rod 22 of the positioning plate 2 through the inner ring, so that the positioning plate 2 is driven by the driving member 3 and rotates through the bearing and the mounting seat 11, thereby quickly switching to the initial state or the positioning state, thereby achieving unlocking (i.e., releasing the positioning of the workpiece) or positioning of the workpiece.

[0060] See also Figure 4 In one embodiment, the mounting seat 11 is provided with a limiting surface 112, and the limiting surface 112 is horizontally arranged; the mounting seat 11 is also provided with a limiting member 113, and the end surface of the limiting member 113 is vertically arranged to the limiting surface 112, wherein, when the driving member 3 is working, the connecting surface of the positioning plate 2 is driven by the driving member 3 to abut against the limiting surface 112 or the end surface of the limiting member 113, so that the positioning plate 2 is in the initial state or the positioning state.

[0061] In this embodiment, the positioning plate 2 is limited by the end of the limiting surface 112 and the limiting member 113 respectively to ensure that the positioning plate 2 is accurately rotated to the angle corresponding to the initial state or the positioning state. In the initial state, the positioning plate 2 is horizontally set (i.e., 0 degrees), and in the positioning state, the positioning plate 2 is vertically set (i.e., 90 degrees), thereby ensuring precise control of the movement of the positioning plate 2 and precise positioning of the workpiece.

[0062] Among them, the limit piece 113 can be a fastener, such as a bolt, and the mounting base 11 is provided with a threaded hole. The bolt is threadedly connected to the threaded hole of the mounting base 11. According to needs, the position of the end of the bolt after passing through the threaded hole can be adjusted to achieve the adjustment of the rotation angle of the positioning plate 2. When the end of the adjusting bolt is set close to the threaded hole, the rotation angle of the positioning plate 2 is greater than 90 degrees. When the end of the adjusting bolt is set away from the threaded hole, the rotation angle of the positioning plate 2 is less than 90 degrees.

[0063] See also Figure 1-5 , in one embodiment, the driving member 3 comprises a cylinder;

[0064] When the positioning plate 2 is in the initial state, the cylinder retracts so that the positioning surface of the positioning plate 2 is flipped from a vertical state to a horizontal state, and the connecting surface of the positioning plate 2 abuts against the limiting surface 112;

[0065] When the positioning plate 2 is in the positioning state, the cylinder extends to flip the positioning surface of the positioning plate 2 from a horizontal state to a vertical state, and the connecting surface of the positioning plate 2 abuts against the end surface of the limiting member 113 .

[0066] In this embodiment, the positioning plate 2 is driven by a cylinder to rotate along the axis of the rotating rod 22 or the bearing, so that the positioning plate 2 can switch between a horizontal state and a vertical state, thereby facilitating unlocking or positioning of the workpiece; wherein the cylinder is arranged at an angle to facilitate driving the positioning plate 2 to rotate.

[0067] See also Figure 6-9 In one embodiment, a slide rail 12 is installed on the base 1 , a slider 121 is slidably connected to the slide rail 12 , and a connecting surface of the positioning plate 2 is connected to the slider 121 .

[0068] In this embodiment, since a slide rail 12 is installed on the base 1, the connecting surface of the positioning plate 2 is connected to the slider 121, and the slider 121 is slidably connected to the slide rail 12, so that the positioning plate 2 slides up and down along the slide rail 12 under the drive of the driving member 3, thereby positioning and unlocking the workpiece.

[0069] See also Figure 6-9 In one embodiment, the slide rail 12 is vertically arranged. When the driving member 3 is working, the positioning plate 2 moves back and forth up and down along the sliding direction of the slide rail 12 driven by the driving member 3, so that the positioning plate 2 is in the initial state or the positioning state.

[0070] See also Figure 6-9 , in one embodiment, the driving member 3 comprises a cylinder;

[0071] When the positioning plate 2 is in the initial state, the cylinder retracts to make the positioning plate 2 drop below the horizontal plane where the bottom surface of the workpiece is located;

[0072] When the positioning plate 2 is in the positioning state, the cylinder extends to make the positioning plate 2 rise to a preset position where it can abut against one end surface of the workpiece.

[0073] In this embodiment, the positioning plate 2 is driven by a cylinder to move up and down along the sliding direction of the slide rail 12, thereby facilitating unlocking or positioning of the workpiece.

[0074] See also Figure 1 One embodiment of the utility model provides a machine tool 4, which is equipped with an auxiliary positioning mechanism as described in any one of the above items.

[0075] One or two auxiliary positioning mechanisms are installed on the machine tool 4 to position one or both ends of the workpiece, and the two sides of the workpiece are clamped by a fixture, so that the workpiece can be stably fixed.

[0076] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An auxiliary positioning mechanism, characterized in that: include: Base, A positioning plate, comprising a connecting surface and a positioning surface, wherein the connecting surface is arranged opposite to the positioning surface, and the positioning plate is movably connected to the base; A driving member, wherein a driving end of the driving member is connected to the positioning plate, so that the positioning plate slides or rotates on the base to an initial state or a positioning state as driven by the driving member; Wherein, when the positioning plate is in the positioning state, the positioning surface of the positioning plate is vertically arranged and can abut against one end surface of the workpiece to position one end of the workpiece; When the positioning plate is in an initial state, the positioning plate is below a horizontal plane where the bottom surface of the workpiece is located.

2. The auxiliary positioning mechanism according to claim 1, characterized in that: The base comprises two mounting seats arranged opposite to each other, a rotating member is arranged on the mounting seats, the positioning plate is arranged between the two mounting seats, and the positioning plate is connected to the rotating member so as to be rotatably connected to the two mounting seats respectively through the rotating member.

3. The auxiliary positioning mechanism according to claim 2, characterized in that: The positioning plate is provided with a connecting rod, and the driving end of the driving member is provided with a sleeve ring which is sleeved with the connecting rod.

4. The auxiliary positioning mechanism according to claim 2, characterized in that: The rotating member comprises a bearing, and the bearing is sleeved on the mounting seat. Rotating rods are respectively arranged at both ends of the positioning plate, and the rotating rods at both ends of the positioning plate are respectively sleeved with the bearings on the two mounting seats.

5. The auxiliary positioning mechanism according to claim 4, characterized in that: The mounting seat is provided with a limiting surface, which is horizontally arranged; the mounting seat is also provided with a limiting member, and the end surface of the limiting member is vertically arranged to the limiting surface, wherein, when the driving member is working, the connecting surface of the positioning plate is driven by the driving member to abut against the limiting surface or the end surface of the limiting member, so that the positioning plate is in the initial state or the positioning state.

6. The auxiliary positioning mechanism according to claim 5, characterized in that: The driving member comprises a cylinder; When the positioning plate is in the initial state, the cylinder retracts so that the positioning surface of the positioning plate flips from a vertical state to a horizontal state, and the connecting surface of the positioning plate abuts against the limiting surface; When the positioning plate is in the positioning state, the cylinder extends to flip the positioning surface of the positioning plate from a horizontal state to a vertical state, and the connecting surface of the positioning plate abuts against the end surface of the limiting member.

7. The auxiliary positioning mechanism according to claim 1, characterized in that: A slide rail is installed on the base, a slider is slidably connected to the slide rail, and the connecting surface of the positioning plate is connected to the slider.

8. The auxiliary positioning mechanism according to claim 7, characterized in that: The slide rail is vertically arranged, and when the driving member is working, the positioning plate moves back and forth up and down along the sliding direction of the slide rail as driven by the driving member, so that the positioning plate is in the initial state or the positioning state.

9. The auxiliary positioning mechanism according to claim 7, characterized in that: The driving member comprises a cylinder; When the positioning plate is in an initial state, the cylinder retracts to make the positioning plate drop below the horizontal plane where the bottom surface of the workpiece is located; When the positioning plate is in the positioning state, the cylinder extends to make the positioning plate rise to a preset position where it can abut against one end surface of the workpiece.

10. A machine tool, characterized in that: The machine tool is equipped with an auxiliary positioning mechanism as described in any one of claims 1-9.

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