Workpiece positioning clamp for intelligent production line construction

Abstract

The utility model discloses a workpiece positioning fixture for intelligent production line construction, which comprises a positioning unit, the positioning unit comprises a processing table and a supporting disc rotationally connected to the top of the processing table, the top of the supporting disc is fixedly connected with four electric telescopic rods distributed annularly, the output end of each electric telescopic rod is provided with a double-ball rod in a sliding manner, and the double-ball rod is connected with the processing table in a sliding manner; the spherical surface of the top end of each double-ball rod is movably sleeved with a ball head sleeve, the upper ends of the multiple ball head sleeves are jointly and fixedly connected with a rectangular plate, and the clamping unit comprises four fixing plates fixedly connected to the top of the rectangular plate. Each double-ball rod is independently lifted through the four electric telescopic rods, so that the rectangular plate can be inclined in different directions and angles, a workpiece can be accurately positioned to a proper inclination angle in cooperation with a cutter, the machining dead angles of the workpiece are reduced, and the machining integrity is improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, and in particular to a workpiece positioning fixture for the construction of intelligent production lines. Background Technology

[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for operation or inspection. It is also called a clamp. In a broader sense, any device used to quickly, conveniently, and safely install a workpiece in any step of the process can be called a fixture. A fixture usually consists of positioning elements (to determine the correct position of the workpiece in the fixture), clamping devices, tool setting and guiding elements (to determine the relative position of the tool and the workpiece or to guide the direction of the tool), indexing devices (to enable the workpiece to complete the processing of several stations in one installation, there are two types: rotary indexing devices and linear indexing devices), connecting elements, and fixture body (fixture base).

[0003] In the process of clamping workpieces, existing workpieces are usually placed horizontally on the machining table and clamped by a fixture. However, the angle of the workpiece cannot be freely adjusted. Some workpieces may require the cutting of oblique holes or beveled surfaces during machining. When the tool length of the machining equipment is limited and the size of the workpiece is large or the machining position is deep, the tool may not be able to contact the machining surface of the workpiece, which requires the tool to be replaced or the tool tilt angle to be readjusted. After replacing the tool or adjusting the tool tilt angle, the tool needs to be repositioned to maintain the accuracy of the toolpath. This wastes a lot of time for adjustment. In addition, the discontinuous cutting of the tool may cause burrs on the cutting surface. Therefore, a workpiece positioning fixture for intelligent production line construction is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current workpiece positioning fixture for intelligent production line construction, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a workpiece positioning fixture for the construction of intelligent production lines. It is suitable for solving the problem that existing workpieces are usually placed horizontally on the processing table and clamped and fixed. Some workpieces have oblique holes or oblique cut surfaces during processing, and the cutting tool may not be able to contact the processing surface of the workpiece. This will waste a lot of time for adjustment, and the non-continuous cutting of the cutting tool may cause burrs on the cutting surface.

[0007] To solve the above technical problems, the utility model provides technical scheme as follows: A workpiece positioning fixture for intelligent production line construction, comprising:

[0008] Positioning unit, it includes processing platform and rotation connection in the top of processing platform's support disc, the top fixedly connected with four electric telescopic link of annular distribution of support disc, the output end of each electric telescopic link is slidably provided with double ball bar, the spherical surface of the top of each double ball bar is movably sleeved with ball head sleeve, and the upper end of a plurality of ball head sleeves is fixedly connected with rectangular plate in common;

[0009] Clamping unit, it includes four fixed plates fixedly connected in the top of rectangular plate, one side of each fixed plate is threadedly connected with threaded rod, one end of each threaded rod is penetrated through the corresponding fixed plate and is rotationally connected with clamping plate, and each clamping plate is slidably arranged on the top of rectangular plate.

[0010] As a preferred scheme of the utility model discloses a workpiece positioning fixture for intelligent production line construction, wherein: the top of the support disc is fixedly connected with a sleeve, the inner cavity of the sleeve is slidably provided with a spherical bar, the spherical surface of the spherical bar is slidably sleeved with a spherical sleeve, the top of the spherical sleeve is fixedly connected with a support plate, and the support plate is fixedly connected to the bottom of the rectangular plate.

[0011] As a preferred scheme of the utility model discloses a workpiece positioning fixture for intelligent production line construction, wherein: one side of the sleeve is threadedly connected with a positioning rod, a plurality of fixed holes matched with the positioning rod are formed in the side wall of the spherical bar, and one end of the positioning rod is penetrated through the outer wall of the sleeve and located in one of the fixed holes.

[0012] As a preferred scheme of the utility model discloses a workpiece positioning fixture for intelligent production line construction, wherein: the rod surface of the spherical bar is fixedly sleeved with a rotary disc, and the bottom of the rotary disc is threadedly connected with two limiting rods penetrated through the rotary disc.

[0013] As a preferred scheme of the utility model discloses a workpiece positioning fixture for intelligent production line construction, wherein: the bottom of the processing platform is fixedly connected with a servo motor, and the output end of the servo motor is penetrated through the processing platform and fixedly connected with the support disc.

[0014] As a preferred scheme of the utility model discloses a workpiece positioning fixture for intelligent production line construction, wherein: one side of each clamping plate is vertically slidably provided with a thin plate, and the top of the rectangular plate is provided with four groups of scale lines corresponding to the positions of the clamping plates.

[0015] The utility model discloses beneficial effect: four electric telescopic rods are used to the single lifting of each double ball rod, and the ball head cover is deflected in the double ball rod, and the deflection angle of different ball head covers promotes the certain degree of freedom of rectangular plate, and the rectangular plate can be inclined in different directions and angles, so that the workpiece can be accurately positioned to the suitable inclination angle with the cutter, and the inclination state can make the cutter more easily reach the originally difficult-to-process position, reduce the processing dead angle and improve the processing integrity. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor. Wherein:

[0017] Figure 1 The utility model discloses the whole structure schematic diagram of workpiece positioning fixture for intelligent production line construction;

[0018] Figure 2 The utility model discloses the positioning unit structure schematic diagram;

[0019] Figure 3 The utility model discloses the round ball rod and round ball cover connecting structure schematic diagram;

[0020] Figure 4 The utility model discloses the clamping unit structure schematic diagram. BRIEF DESCRIPTION OF DRAWINGS:

[0022] 100, positioning unit;101, processing table;102, support disc;103, electric telescopic rod;104, double ball rod;105, ball head cover;106, rectangular plate;107, sleeve;108, round ball rod;109, round ball cover;110, support plate;111, positioning rod;112, turntable;113, limiting rod;114, servo motor;200, clamping unit;201, fixed plate;202, threaded rod;203, clamping plate;204, thin plate;205, scale line. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following will be detailed to the specific implementation of the utility model with the description of the drawings.

[0024] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can be practiced in other ways not described herein, and it is understood that one skilled in the art can make similar substitutions without departing from the scope of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0026] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual manufacture.

[0027] Embodiments

[0028] Reference Figures 1-4 For one embodiment of the present application, a workpiece positioning clamp for intelligent production line construction is provided, comprising: a positioning unit 100 and a clamping unit 200;

[0029] The positioning unit 100 comprises a machining table 101 and a support disc 102 rotatably connected to the top of the machining table 101, and the top of the support disc 102 is fixedly connected with four electric telescopic rods 103 arranged in a ring shape, the output end of each electric telescopic rod 103 is slidably provided with a double ball rod 104, the spherical surface at the top end of each double ball rod 104 is movably sleeved with a ball head sleeve 105, and the upper ends of the plurality of ball head sleeves 105 are fixedly connected with a rectangular plate 106.

[0030] The clamping unit 200 comprises four fixed plates 201 fixedly connected to the top of the rectangular plate 106, one side of each fixed plate 201 is threadedly connected with a threaded rod 202, one end of each threaded rod 202 penetrates through the corresponding fixed plate 201 and is rotatably connected with a clamping plate 203, and each clamping plate 203 is slidably arranged on the top of the rectangular plate 106.

[0031] The electric telescopic rods 103 are annularly and equidistantly distributed on the support disc 102. When only one electric telescopic rod 103 pushes the double ball rod 104 to descend, the double ball rod 104 drives the ball head sleeve 105 at the top of the double ball rod 104 to descend, and then the double ball rod 104 is driven to ascend by the electric telescopic rod 103 in the opposite direction, at this time, each ball head sleeve 105 deflects on the spherical surface of the respective double ball rod 104, and the spherical surface at the bottom of the double ball rod 104 can also deflect on the output end of the electric telescopic rod 103, thereby driving the rectangular plate 106 to tilt, and then the rectangular plate 106 tilts downward to the direction of the electric telescopic rod 103 which has descended. When the two adjacent electric telescopic rods 103 synchronously pull the double ball rod 104 to descend, and the other two electric telescopic rods 103 synchronously push the double ball rod 104 to ascend, the rectangular plate 106 tilts downward to the center of the two electric telescopic rods 103 which have descended. The height difference of the two adjacent electric telescopic rods 103 which have descended and the height difference of the other two electric telescopic rods 103 which have ascended are controlled;

[0032] The rectangular plate 106 can tilt in different directions between the two electric telescopic rods 103. The height of each double ball rod 104 is intelligently and independently controlled by the four electric telescopic rods 103, so that each ball head sleeve 105 can deflect on the spherical surface of the respective double ball rod 104. Thus, the rectangular plate 106 is provided with a certain deflection freedom, the height at the center of the rectangular plate 106 is fixed, and the rectangular plate 106 can deflect by a certain angle in any direction, so that the workpiece can be accurately positioned to a suitable tilt angle in cooperation with the tool. The tilt state can make the tool more easily reach the originally difficult-to-process position, reduce the processing dead angle, and improve the processing integrity. When the rectangular plate 106 is in a horizontal state, the workpiece is placed at the center of the top of the rectangular plate 106, and then each threaded rod 202 is rotated in turn to move the clamping plate 203 to the center of the rectangular plate 106. The four clamping plates 203 are close to each other and clamp the workpiece, so as to facilitate subsequent production and processing.

[0033] In addition, the top of the support disc 102 is fixedly connected with a sleeve 107, the inner cavity of the sleeve 107 is slidably provided with a spherical rod 108, the spherical surface of the spherical rod 108 is slidably sleeved with a spherical sleeve 109, the top of the spherical sleeve 109 is fixedly connected with a support plate 110, and the support plate 110 is fixedly connected to the bottom of the rectangular plate 106.

[0034] The spherical rod 108 can vertically slide in the inner cavity of the sleeve 107, and is located directly below the rectangular plate 106 and used for supporting the rectangular plate 106, thereby reducing the load pressure of the four electric telescopic rods 103; when the rectangular plate 106 is in an inclined state, the spherical rod 108 will deflect in the spherical sleeve 109 due to the unchanged height at the center of the rectangular plate 106, and the support plate 110 will deflect together with the rectangular plate 106, the support plate 110 is connected with the spherical rod 108 through the spherical sleeve 109, and the support plate 110 can be supported by the spherical rod 108, so that the support plate 110 is used to reduce the bearing burden of the electric telescopic rod 103, and the support plate 110 can be used for auxiliary support when the weight of the workpiece is heavy.

[0035] Further, the sleeve 107 is screw-connected with a positioning rod 111 on one side, a plurality of fixing holes matched with the positioning rod 111 are formed in the side wall of the spherical rod 108, one end of the positioning rod 111 penetrates through the outer wall of the sleeve 107 and is located in one of the fixing holes, and the rod surface of the spherical rod 108 is fixedly sleeved with a rotating disc 112, and the bottom of the rotating disc 112 is screw-connected with two limiting rods 113 penetrating through the rotating disc 112.

[0036] The positioning rod 111 is used for fixing the spherical rod 108 in the sleeve 107, so that the spherical rod 108 cannot vertically ascend and descend in the sleeve 107; when the height of the rectangular plate 106 needs to be adjusted, the positioning rod 111 is rotated to be no longer inserted into the positioning hole of the spherical rod 108, then all the electric telescopic rods 103 are started to drive the rectangular plate 106 to ascend and descend, the rectangular plate 106 drives the spherical sleeve 109 to ascend and descend through the support plate 110, and the spherical sleeve 109 drives the spherical rod 108 to vertically slide in the sleeve 107; when the height adjustment of the rectangular plate 106 is completed, the positioning rod 111 is aligned with the positioning hole corresponding to the position of the spherical rod 108, then the positioning rod 111 is rotated to be inserted into the corresponding positioning hole, so as to lock the position of the spherical rod 108, thereby supporting the rectangular plate 106;

[0037] When the workpiece of the rectangular plate 106 does not need to be inclined, the rectangular plate 106 is restored to a horizontal state through the electric telescopic rods 103, then the two limiting rods 113 on the rotating disc 112 are rotated, so that the top of the two limiting rods 113 abuts against the bottom of the support plate 110, at this moment, the rectangular plate 106 is limited by the two limiting rods 113 and cannot deflect, so that the rectangular plate 106 can keep a stable horizontal state; when the workpiece needs to be processed in an inclined state, the limiting rods 113 are reversely rotated to no longer abut against the support plate 110 and leave a space gap between the bottom of the support plate 110, then the rectangular plate 106 can freely deflect and incline.

[0038] Further, the bottom of the processing table 101 is fixedly connected with a servo motor 114, the output end of the servo motor 114 penetrates the processing table 101 and is fixedly connected with the supporting disc 102, one side of each clamping plate 203 is vertically slidably provided with a thin plate 204, and the top of the rectangular plate 106 is provided with four groups of scale lines 205 corresponding to the positions of the clamping plates 203.

[0039] The supporting disc 102 can be driven to rotate by the servo motor 114, so that the workpiece can be rotated, which facilitates the machining of the cutter and the manual rubbing machining of the workpiece by the worker, the thin plate 204 vertically slides on the clamping plate 203, when the four clamping plates 203 are close to each other, the clamping plate 203 is limited in volume to leave a gap at the center of the rectangular plate 106, and it is difficult to clamp the workpiece with small volume, the gap can be reduced by the thin plate 204, and the workpiece with small volume can be clamped by the thin plate 204, when the thin plate 204 is not used, the thin plate 204 can be slid off the clamping plate 203 for quick disassembly and assembly of the thin plate 204;

[0040] When clamping the cuboid workpiece, the positions of the clamping plates 203 can be moved according to the scale lines 205, so that the lengths moved by the two clamping plates 203 in opposite directions are consistent, so as to ensure that the workpiece is located at the center of the rectangular plate 106, when clamping workpieces of different shapes, the distances required for the clamping plates 203 to move and clamp can be calculated according to the four directions clamped by the workpiece, and the distances moved by the clamping plates 203 are consistent with the calculated distances by the scale lines 205, so as to facilitate the workpiece to be located at the center of the top of the rectangular plate 106.

[0041] During use, when the height of the rectangular plate 106 needs to be adjusted, the positioning rod 111 is rotated so as not to be inserted into the positioning hole of the spherical rod 108, then all the electric telescopic rods 103 are started to drive the rectangular plate 106 to ascend and descend, when the height of the rectangular plate 106 is adjusted, the positioning rod 111 is rotated to be inserted into the corresponding positioning hole to lock the position of the spherical rod 108, when the rectangular plate 106 is in a horizontal state, the workpiece is placed at the center of the top of the rectangular plate 106, then each threaded rod 202 is rotated in sequence to make the four clamping plates 203 close to each other and clamp the workpiece, when the workpiece with small volume needs to be clamped, the thin plate 204 is slidably installed on the clamping plate 203 to clamp the workpiece with small volume, when the workpiece needs to be inclined, the height of each double spherical rod 104 is intelligently and independently controlled by the four electric telescopic rods 103, so that each ball head sleeve 105 can be deflected on the spherical surface of the double spherical rod 104;

[0042] Therefore, the rectangular plate 106 can be deflected at any angle in any direction at any time when the workpiece is being processed, so that the workpiece can be accurately positioned to the appropriate inclined angle with the cutter, so as to facilitate processing. When no inclination is needed, the rectangular plate 106 is restored to the horizontal state by the electric telescopic rod 103, and then the rotation limiting rod 113 is rotated to abut against the bottom of the supporting plate 110, so that the rectangular plate 106 remains in a stable horizontal state. When the workpiece needs to be processed in an inclined state, the rotation limiting rod 113 is rotated in the opposite direction so as not to be in contact with the supporting plate 110, and then the rectangular plate 106 can be freely deflected and inclined. After the workpiece is processed, the threaded rod 202 is rotated so that the clamping plate 203 is away from the workpiece, and then the workpiece can be taken out from the rectangular plate 106.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A workpiece positioning fixture for intelligent production line construction, characterized by, The utility model relates to a positioning unit (100) and clamping unit (200) are connected, and the positioning unit (100) includes processing platform (101) and the support disc (102) of rotation connection in the top of processing platform (101), the top of support disc (102) is fixedly connected with four electric telescopic rod (103) of annular distribution, and the output of each electric telescopic rod (103) is slidably provided with double ball rod (104), and the spherical surface of the top of each double ball rod (104) is movably sleeved with ball head sleeve (105), and the upper end of a plurality of ball head sleeves (105) is fixedly connected with rectangular plate (106) in common. The clamping unit (200) includes four fixed plates (201) fixedly connected on the top of the rectangular plate (106), one side of each fixed plate (201) is threadedly connected with a threaded rod (202), one end of each threaded rod (202) penetrates through the corresponding fixed plate (201) and is rotatably connected with a clamping plate (203), and each clamping plate (203) is slidably arranged on the top of the rectangular plate (106). The top of the support disc (102) is fixedly connected with a sleeve (107), the inner cavity of the sleeve (107) is slidably provided with a spherical rod (108), the spherical surface of the spherical rod (108) is slidably sleeved with a spherical sleeve (109), the top of the spherical sleeve (109) is fixedly connected with a support plate (110), and the support plate (110) is fixedly connected to the bottom of the rectangular plate (106).

2. The workpiece positioning fixture for smart production line construction of claim 1, wherein: One side of the sleeve (107) is threadedly connected with a positioning rod (111), a plurality of fixed holes are formed in the side wall of the spherical rod (108) and matched with the positioning rod (111), and one end of the positioning rod (111) penetrates through the outer wall of the sleeve (107) and is located in one of the fixed holes.

3. The workpiece positioning fixture for smart production line construction of claim 2, wherein: The rod surface of the spherical rod (108) is fixedly sleeved with a rotary disc (112), and the bottom of the rotary disc (112) is threadedly connected with two limiting rods (113) penetrating through the rotary disc (112).

4. The workpiece positioning fixture for smart production line construction of claim 3, wherein: The bottom of the processing platform (101) is fixedly connected with a servo motor (114), the output end of the servo motor (114) penetrates through the processing platform (101) and is fixedly connected with the support disc (102).

5. The workpiece positioning fixture for smart production line construction of claim 1, wherein: One side of each clamping plate (203) is vertically slidably provided with a thin plate (204), and the top of the rectangular plate (106) is provided with four groups of scale lines (205) corresponding to the positions of the clamping plates (203).

6. The workpiece positioning fixture for smart production line construction of claim 1, wherein: ​

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