Linear cutting positioning device

Abstract

The utility model provides a linear cutting positioning device. The linear cutting positioning device comprises a base, two first clamping pieces, two second clamping pieces, a telescopic driving piece and a rotary driving piece. The base is provided with a first slide way and a second slide way, and the first slide way is perpendicular to the second slide way. The two first clamping pieces are both in sliding connection with the first sliding way, and the two first clamping pieces are used for relatively sliding so as to abut against two opposite side walls of the workpiece correspondingly; the two second clamping pieces are both in sliding connection with the second sliding way, both the two second clamping pieces are connected with the two first clamping pieces, and the two second clamping pieces are driven by the two first clamping pieces to relatively slide so as to abut against the other two opposite side walls of the workpiece correspondingly; the telescopic driving piece is arranged on the base, and the output end of the telescopic driving piece is connected with the two first clamping pieces. The rotary driving piece is arranged below the base, and the output end of the rotary driving piece is used for bearing and driving the base to rotate. Workpieces of different sizes are clamped and fixed through the first clamping piece and the second clamping piece, and the application range of the positioning clamp is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire cutting, and in particular relates to a wire cutting positioning device. Background Art

[0002] Wire cutting is the full name of electric spark wire cutting. On the basis of electric spark perforation and forming processing, the application of electric spark machining has been developed. During wire cutting, auxiliary devices such as positioning fixtures need to be set up to position the workpiece on the base through the positioning fixtures.

[0003] In the existing technology, when the positioning fixture positions the workpiece and performs wire cutting, the workpiece will adjust its own angle according to the processing needs. The traditional positioning fixture positions the workpiece on the base. When adjusting the angle, it is necessary to stop the wire cutting operation first, cancel the positioning of the workpiece, and reposition it after the angle adjustment operation, which affects the efficiency of the wire cutting work. In addition, wire cutting will process workpieces of various sizes and types. The traditional positioning fixture has great limitations when dealing with workpieces of various sizes and shapes. Utility Model Content

[0004] The embodiment of the utility model provides a wire cutting positioning device, which aims to improve the efficiency of wire cutting work and the application range of the positioning fixture.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a wire cutting positioning device, including a base, two first clamping members, two second clamping members, a telescopic drive member and a rotating drive member; a first slide and a second slide are provided on the base, and the first slide is perpendicular to the second slide; the two first clamping members are both slidably connected to the first slide, and the two first clamping members are used to slide relative to each other to respectively abut two opposite side walls of the workpiece; the two second clamping members are both slidably connected to the second slide, and the two second clamping members are both connected to the two first clamping members, and slide relative to each other under the drive of the two first clamping members to respectively abut the other two opposite side walls of the workpiece; the telescopic drive member is provided on the base and the output end is respectively connected to the two first clamping members; the rotating drive member is provided under the base, and the output end of the rotating drive member is used to support and drive the base to rotate.

[0006] In a possible implementation, both sides of the second clamping member are provided with abutting arms that abut against the side walls of the first clamping member, and the first clamping member drives the second clamping member to slide synchronously via the abutting arms.

[0007] In a possible implementation, the side wall of the first clamping member is inclined and provided with a sliding groove, and the abutting arm is provided with a roller, which is rollingly connected in the sliding groove.

[0008] In a possible implementation, two fixing seats are provided on the base, the two fixing seats are respectively located at two ends of the second slideway, and the second clamping member is connected to the fixing seats via an elastic member.

[0009] In a possible implementation, the opposite side walls of the two first clamping members and / or the opposite side walls of the two second clamping members are respectively slidably connected to movable plates, and the movable plates are used to abut against the side walls of the workpiece.

[0010] In one possible implementation, the telescopic drive member includes a bidirectional screw and a drive motor. The bidirectional screw is located in the first slide, and both ends are rotatably connected to the base. The first clamping member is threadedly engaged with the bidirectional screw; the drive motor is arranged on one side of the base, and the output end is connected to one end of the bidirectional screw.

[0011] In a possible implementation, a slider is provided below the first clamping member, the slider is slidably connected to the first slideway, and is engaged with the bidirectional lead screw thread.

[0012] In a possible implementation, the first slideway is a trapezoidal groove, and the sliding block is slidably fitted against an inner wall of the first slideway.

[0013] In a possible implementation, the rotary driving member includes a rotary table and a rotary power member. The rotary table is connected to the bottom of the base, and the output end of the rotary power member is connected to the rotary table.

[0014] In a possible implementation, the wire cutting positioning device further includes a supporting platform, which is provided on the base and is used to support the workpiece.

[0015] The beneficial effect of the wire cutting positioning device provided by the utility model is that: compared with the existing technology, the utility model adopts a first clamping member and a second clamping member on the base to cooperate with each other to clamp and position the workpiece, and a rotating driving member is arranged under the base to drive the base to rotate, so that the workpiece rotates with the base after being fixed to the base, and the angle of the workpiece can be adjusted during the process of clamping and positioning the workpiece, which is beneficial to improving the working efficiency of wire cutting; the first clamping member slidingly arranged in the first slide and the second clamping member in the second slide can cooperate with each other to clamp and fix workpieces of different sizes and types, thereby improving the applicability of the positioning fixture while saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of the wire cutting positioning device provided in an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the top view of the wire cutting positioning device provided in an embodiment of the utility model;

[0018] Figure 3A schematic diagram of the three-dimensional structure of the base used in the embodiment of the present utility model;

[0019] In the figure: 10, base; 11, first slide; 12, second slide; 13, fixed seat; 20, first clamping member; 21, slide groove; 22, slider; 30, second clamping member; 31, abutment arm; 32, roller; 33, elastic member; 40, telescopic driving member; 41, bidirectional screw rod; 42, driving motor; 50, rotating driving member; 51, rotating table; 52, rotating power member; 60, movable plate; 70, supporting platform. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] Please also refer to Figure 1The wire cutting positioning device provided by the present invention is now described. The wire cutting positioning device includes a base 10, two first clamping members 20, two second clamping members 30, a telescopic driving member 40 and a rotating driving member 50; a first slide 11 and a second slide 12 are provided on the base 10, and the first slide 11 is perpendicular to the second slide 12; the two first clamping members 20 are slidably connected to the first slide 11, and the two first clamping members 20 are used to slide relative to each other to respectively abut two opposite side walls of the workpiece; the two second clamping members 30 are slidably connected to the second slide 12, and the two second clamping members 30 are connected to the two first clamping members 20, and driven by the two first clamping members 20, they slide relative to each other to respectively abut the other two opposite side walls of the workpiece; the telescopic driving member 40 is provided on the base 10 and the output end is connected to the two first clamping members 20 respectively; the rotating driving member 50 is provided below the base 10, and the output end of the rotating driving member 50 is used to support and drive the base 10 to rotate.

[0023] It should be noted that the base 10 is a workbench on the wire cutting machine, which can be rotated on the wire cutting machine under the drive of the rotating drive member 50; the two first clamping members 20 and the two second clamping members 30 can change the size of the clamping space by sliding on the first slide 11 and the second slide 12, and can clamp and fix workpieces of different sizes and types, which can increase the applicability of the positioning fixture, and there is no need to make different types of clamping and positioning fixtures, saving production costs; the second clamping member 30 can follow the sliding of the first clamping member 20 and produce relative sliding. When the telescopic drive member 40 controls the first clamping member 20 to clamp the opposite side wall of the workpiece, the second clamping member 30 can also clamp the other opposite side wall of the workpiece under the drive of the first clamping member 20, which can improve the clamping and positioning effect of the workpiece.

[0024] The beneficial effect of the wire cutting positioning device provided by the present invention is that: compared with the prior art, the present invention adopts a first clamping member 20 and a second clamping member 30 on the base 10 to cooperate with each other to clamp and position the workpiece, and a rotating driving member 50 is provided under the base 10 to drive the base 10 to rotate, so that the workpiece rotates together with the base 10 after being fixed to the base 10, and the angle of the workpiece can be adjusted during the process of clamping and positioning the workpiece, which is beneficial to improving the working efficiency of wire cutting; the first clamping member 20 slidingly arranged in the first slide 11 and the second clamping member 30 in the second slide 12 can cooperate with each other to clamp and fix workpieces of different sizes and types, thereby improving the applicability of the positioning fixture while saving costs.

[0025] In one possible implementation, see Figure 2 Both sides of the second clamping member 30 are provided with abutting arms 31 that abut against the side walls of the first clamping member 20. The first clamping member 20 drives the second clamping member 30 to slide synchronously through the abutting arms 31.

[0026] It should be noted that both ends of the two second clamping members 30 extend out with abutting arms 31 and abut against the side walls of the first clamping member 20. In the process of the two first clamping members 20 moving away from each other, the side walls of the two first clamping members 20 move toward the two ends of the first slide 11 respectively, and the abutting force between the side walls of the first clamping members 20 and the abutting arms 31 is converted into power for the two second clamping members 30 to move away from each other. The contact surface between the side walls of the two first clamping members 20 and the abutting arms 31 gradually becomes smaller, so that the clamping space between the two second clamping members 30 becomes larger, and can clamp and fix larger workpieces.

[0027] In one possible implementation, see Figure 2 The side wall of the first clamping member 20 is tilted and has a slide groove 21 . The abutting arm 31 is provided with a roller 32 , which is rollingly connected in the slide groove 21 .

[0028] It should be noted that the shape of the first clamping member 20 can be trapezoidal, and the longer side of the two first clamping members 20 is arranged close to each other and can serve as the clamping end for positioning the workpiece; the shape of the first clamping member 20 can also be arc-shaped, and the planes of the two first clamping members 20 are arranged close to each other, and the two arc surfaces are arranged far away from each other; the second clamping member 30 can be slidably connected to the slide groove 21, and there is a sliding constraint between the abutting arm 31 and the inclined side wall of the first clamping member 20, which can ensure the clamping force of the second clamping member 30; the slide groove 21 can limit the second clamping member 30 in the vertical direction, preventing the second clamping member 30 from detaching from the slide rail from above when sliding in the slide rail, preventing the workpiece from offsetting during wire cutting, and improving operational accuracy.

[0029] The diameter of the roller 32 is greater than the width of the abutment arm 31, and can extend into the slide groove 21 and roll with the slide groove 21 when the abutment arm 31 abuts the side wall of the first clamping member 20, which can reduce the sliding friction generated by the first clamping member 20 and the second clamping member 30 when they move relative to each other, and can save the driving power of the telescopic drive member 40 when the clamping space is changed; and the roller 32 is located inside the slide groove 21, and is limited by the slide groove 21 in the vertical direction, thereby improving the connection strength between the second clamping member 30 and the first clamping member 20, and avoiding vertical misalignment between the second clamping member 30 and the first clamping member 20 that affects the clamping and positioning of the workpiece.

[0030] In one possible implementation, see Figure 2 and Figure 3 Two fixing seats 13 are provided on the base 10 , and the two fixing seats 13 are respectively located at the two ends of the second slide 12 , and the second clamping member 30 is connected to the fixing seats 13 through an elastic member 33 .

[0031] When the two second clamping members 30 move away from each other and abut against the fixed seat 13, the fixed seat 13 can limit the second clamping member 30 from sliding out of the device along the second slide 12, and cooperate with the roller 32 rollingly set in the slide groove 21 to make the second clamping member 30 always slidingly connected with the second slide 12, so as to achieve clamping and positioning of workpieces of different sizes; the fixed seat 13 provides a connection position for the elastic member 33, and the elastic member 33 can be a spring to provide an elastic force for the two second clamping members 30 to move closer to each other. When the two second clamping members 30 move away from each other, the elastic member 33 has an elastic force after compression, and can make the second clamping members 30 tend to move closer to each other through its own elastic force, so that the second clamping member 30 always abuts against the side wall of the first clamping member 20 during the process of moving away from each other, so that the workpiece in the clamping space is subjected to the abutment force from the first clamping member 20 and the second clamping member 30 on all sides, thereby achieving the clamping and positioning of the workpiece.

[0032] In one possible implementation, see Figure 2 The opposite side walls of the two first clamping members 20 and / or the opposite side walls of the two second clamping members 30 are respectively slidably connected with movable plates 60, and the movable plates 60 are used to abut against the side walls of the workpiece.

[0033] It should be noted that the movable plate 60 can be slidingly provided at one end of the first clamping member 20 and the second clamping member 30 that abuts against the workpiece, so as to cooperate in clamping the peripheral wall of the workpiece; the movable plate 60 can also be provided only on the two first clamping members 20 or only on the two second clamping members 30; the first clamping member 20 and the second clamping member 30 can both be provided with nuts that can fix the movable plate 60, and when the movable plate 60 needs to be adjusted, the movable plate 60 can be fixed at any position by tightening the nuts, so that the circumference of the space inside the first clamping member 20 and the second clamping member 30 changes; the first clamping member 20 drives the second clamping member 3 0 move together to clamp the workpiece. When the proportion of the workpiece changes, the circumference of the internal space of the first clamping member 20 and the second clamping member 30 is changed by adjusting the movable plates 60 on the first clamping member 20 and the second clamping member 30, so as to achieve the effect of clamping the peripheral wall of the workpiece with different proportions; the movable plates 60 are ensured to be arranged relative to each other, and the relative movable plates 60 keep the first clamping member 20 and the second clamping member 30 symmetrical. When the first clamping member 20 drives the second clamping member 30 and the movable plate 60 to clamp the workpiece, the workpiece can be positioned in the middle of the base 10, preventing the workpiece from deviating from the wire cutting machine.

[0034] In one possible implementation, see Figure 3The telescopic drive member 40 includes a bidirectional screw rod 41 and a drive motor 42. The bidirectional screw rod 41 is located in the first slide 11, and both ends are rotatably connected to the base 10. The first clamping member 20 is threadedly engaged with the bidirectional screw rod 41; the drive motor 42 is arranged on one side of the base 10, and the output end is connected to one end of the bidirectional screw rod 41.

[0035] It should be noted that the bidirectional lead screw can be a ball screw, which can convert its own rotational motion into the linear motion of the slider 22; the drive motor 42 can be a servo motor; the bidirectional lead screw is threadedly matched with the two sliders 22. Since the first slide 11 can limit the two sliders 22 to rotate following the bidirectional lead screw 41, the bidirectional lead screw can drive the two first clamping members 20 to move horizontally in the first slide 11 through its own rotation, thereby changing the distance between the two first clamping members 20, making the spacing between the two first clamping members 20 variable, and can clamp and fix workpieces of various sizes and types, thereby improving the applicability of the positioning fixture.

[0036] In one possible implementation, see Figure 3 A slider 22 is provided below the first clamping member 20 . The slider 22 is slidably connected to the first slideway 11 and is threadedly engaged with the bidirectional screw rod 41 .

[0037] It should be noted that the two sliders 22 are provided with threads inside and rotate in opposite directions. Therefore, when the bidirectional screw rotates in one direction, the two sliders 22 will produce displacements in opposite directions in the first slideway 11; when the bidirectional screw rotates, the two sliders 22 will approach each other, and the two first clamping members 20 will also approach and clamp the workpiece accordingly; when the bidirectional screw rotates in the opposite direction, the two sliders 22 will move away from each other, and the two first clamping members 20 will also move away accordingly. The distance between the two first clamping members 20 becomes larger, and can clamp and position workpieces with larger positioning sizes, thereby improving the applicability of the positioning fixture.

[0038] In one possible implementation, see Figure 3 The first slideway 11 is a trapezoidal groove, and the slider 22 slides and fits with the inner wall of the first slideway 11.

[0039] It should be noted that the opening width of the first slide 11 is smaller than the bottom wall width of the first slide 11, the shape of the slider 22 matches the inner wall shape of the first slide 11, the area of ​​the top wall of the slider 22 is smaller than the area of ​​the bottom wall of the slider 22, and when the slider 22 slides in the first slide 11, the slider 22 abuts against the side wall of the first slide 11 to prevent the slider 22 from sliding out from above the first slide 11; one of the sliders 22 can be fixed in the first slide 11, and the other slider 22 can slide in the first slide 11, so that the two first clamping members 20 can clamp and fix workpieces of different sizes and types.

[0040] In one possible implementation, see Figure 1 The rotary driving member 50 includes a rotary table 51 and a rotary power member 52 . The rotary table 51 is connected to the bottom of the base 10 , and the output end of the rotary power member 52 is connected to the rotary table 51 .

[0041] It should be noted that the rotating power part 52 is arranged inside the wire cutting machine to provide rotational power for the rotary table 51; the wire cutting machine is provided with a through hole with the same shape as the rotary table 51, and the side wall of the rotary table 51 is in contact with the through hole. The rotary table 51 rotates in the through hole, driving the base 10 to rotate to adjust the processing angle of the workpiece.

[0042] In one possible implementation, see Figure 1 The wire cutting positioning device further includes a supporting platform 70 , which is disposed on the base 10 and is used to support the workpiece.

[0043] It should be noted that the surface of the supporting platform 70 is slightly higher than the upper surface of the base 10 and is used to support the workpiece. The surface of the supporting platform 70 is horizontal and can cooperate with each clamping end to realize the clamping and positioning of the workpiece, avoid the workpiece from being misaligned in the vertical direction, and improve the effectiveness of positioning the workpiece; the supporting platform 70 provides a platform for wire cutting and provides protection for the base 10 and the telescopic drive 40 to avoid damage to the base 10 and the telescopic drive 40 caused by wire cutting operations.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Wire cutting positioning device, characterized in that, include: A base, wherein a first slideway and a second slideway are provided on the base, wherein the first slideway is perpendicular to the second slideway; Two first clamping members are both slidably connected to the first slideway, and the two first clamping members are used to slide relative to each other to respectively abut against two opposite side walls of the workpiece; Two second clamping members are both slidably connected to the second slideway, and the two second clamping members are both connected to the two first clamping members, and are driven by the two first clamping members to slide relative to each other to respectively abut against the other two opposite side walls of the workpiece; a telescopic driving member, disposed on the base and having an output end connected to the two first clamping members respectively; The rotary driving member is arranged below the base, and the output end of the rotary driving member is used for supporting and driving the base to rotate.

2. The wire cutting positioning device according to claim 1, characterized in that: Both sides of the second clamping member are provided with abutting arms that abut against the side walls of the first clamping member, and the first clamping member drives the second clamping member to slide synchronously through the abutting arms.

3. The wire cutting positioning device according to claim 2, characterized in that: The side wall of the first clamping member is arranged obliquely and is provided with a sliding groove. The abutting arm is provided with a roller, and the roller is rollingly connected in the sliding groove.

4. The wire cutting positioning device according to claim 3, characterized in that: Two fixing seats are provided on the base, and the two fixing seats are respectively located at two ends of the second slideway, and the second clamping member is connected to the fixing seats through an elastic member.

5. The wire cutting positioning device according to claim 1, wherein: The two opposite side walls of the first clamping members and / or the two opposite side walls of the second clamping members are respectively slidably connected with movable plates, and the movable plates are used to abut against the side walls of the workpiece.

6. The wire cutting positioning device according to claim 1, wherein: The telescopic drive component includes a bidirectional screw and a drive motor. The bidirectional screw is located in the first slide, and both ends are rotatably connected to the base. The first clamping component is threadedly engaged with the bidirectional screw; the drive motor is arranged on one side of the base, and the output end is connected to one end of the bidirectional screw.

7. The wire cutting positioning device according to claim 6, characterized in that: A slider is provided below the first clamping member. The slider is slidably connected to the first slideway and is threadably engaged with the bidirectional lead screw.

8. The wire cutting positioning device according to claim 7, characterized in that: The first slideway is a trapezoidal groove, and the sliding block is slidably fitted against the inner wall of the first slideway.

9. The wire cutting positioning device according to claim 1, wherein: The rotary driving component includes a rotary table and a rotary power component. The rotary table is connected to the bottom of the base, and the output end of the rotary power component is connected to the rotary table.

10. The wire cutting positioning device according to any one of claims 1 to 9, characterized in that: The wire cutting positioning device further comprises a supporting platform, which is arranged on the base and is used for supporting the workpiece.

Images