Positioning and clamping device for cross beam

Abstract

The utility model provides a positioning and clamping device for a cross beam, which is characterized by comprising an end positioning plate mechanism, an end pressing plate positioning mechanism and a middle pressing plate positioning mechanism, wherein the two end positioning plate mechanisms are arranged at the end of a workpiece in a bilateral symmetry mode, and each end positioning plate mechanism comprises a vertically-arranged positioning plate, a positioning core and a positioning pin, and the positioning core and the positioning pin are fixedly installed on the positioning plate; the two end pressing plate positioning mechanisms are arranged at the end of a workpiece in a bilateral symmetry mode, and each end pressing plate positioning mechanism comprises an upper pressing plate unit and a side pressing plate unit. At least one set of middle pressing plate positioning mechanism is arranged in the middle of the workpiece. The positioning and clamping device special for the cross beam improves the clamping stability and consistency, is easy to install and operate, can achieve quick clamping work of workpieces, and improves the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a positioning and clamping device for a crossbeam. Background Technology

[0002] Currently, in the machining process of beam-type products, they are generally fixed to the machine tool table using general-purpose clamping tools before machining. However, due to the large length of beam-type products, the stability and consistency of using general-purpose clamping tools for positioning and clamping need improvement. Alternatively, there is a type of integrated tooling specifically designed for beam clamping; however, the manufacturing cost of this integrated tooling structure is high, and the production time is long, resulting in a relatively high price, making it not the preferred choice for most manufacturers.

[0003] In view of the above, there is a need for a special positioning and clamping tool for crossbeams that is convenient, reliable and low cost. Utility Model Content

[0004] In order to solve the above problems, the present invention aims to provide a positioning and clamping device for crossbeams.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a positioning and clamping device for a crossbeam, characterized in that it includes: an end positioning plate mechanism, an end pressure plate positioning mechanism, and a middle pressure plate positioning mechanism; wherein, the end positioning plate mechanism consists of two sets, symmetrically arranged at the ends of the workpiece, each set including a vertically arranged positioning plate, a positioning core fixed on the positioning plate, and a positioning pin; the end pressure plate positioning mechanism consists of two sets, symmetrically arranged at the ends of the workpiece, each set including an upper pressure plate unit and a side pressure plate unit; the middle pressure plate positioning mechanism consists of at least one set, arranged in the middle of the workpiece.

[0007] Furthermore, the positioning and clamping device for crossbeams provided by this utility model may also have the following feature: wherein the positioning core includes a first positioning core and a second positioning core for connecting the positioning hole on the side of the workpiece, and both the first positioning core and the second positioning core are installed and fixed on the side of the positioning plate.

[0008] Furthermore, the positioning and clamping device for crossbeams provided by this utility model may also have the following feature: the positioning pin is installed and fixed on the bottom surface of the positioning plate, and the shape and size of the positioning pin are adapted to the cross-section of the T-slot of the machine tool worktable.

[0009] Furthermore, the positioning and clamping device for crossbeams provided by this utility model may also have the following features: each set of end pressure plate positioning mechanisms includes two upper pressure plate units; the upper pressure plate unit includes a first pressure plate, a first pressure plate support, and a first screw; one end of the first pressure plate presses against the positioning plate; a first screw connection hole is opened in the middle of the first pressure plate, the lower end of the first screw extends into the T-slot of the machine tool worktable and is connected with a nut, and the upper end of the first screw is connected to the first screw connection hole; the upper end of the first pressure plate support abuts against the lower surface of the other end of the first pressure plate, and the lower end of the first pressure plate support abuts against the upper surface of the machine tool worktable.

[0010] Furthermore, the positioning and clamping device for crossbeams provided by this utility model may also have the following features: each set of end pressure plate positioning mechanisms includes a side pressure plate unit; the side pressure plate unit includes a second pressure plate, a second pressure plate support, and a second screw, one end of the second pressure plate presses on the workpiece; one end of the second pressure plate support is threaded to the other end of the second pressure plate, and the other end abuts against the side of the positioning plate; a second screw connection hole is opened in the middle of the second pressure plate, one end of the second screw is connected to the second screw connection hole, and the other end is connected and fixed to the screw hole of the positioning plate.

[0011] Furthermore, in the positioning and clamping device for crossbeams provided by this utility model, it is characterized by further comprising: an end U-shaped clamp positioning mechanism, wherein two sets of end U-shaped clamp positioning mechanisms are symmetrically arranged at the ends of the workpiece, each set including a U-shaped clamp body for clamping the workpiece and a support bolt connected to the U-shaped clamp body, the end of the support bolt abutting against the side of the positioning plate.

[0012] Furthermore, the positioning and clamping device for crossbeams provided by this utility model may also have the following features: wherein the central pressure plate positioning mechanism includes a third pressure plate, a third pressure plate support, and a third screw; one end of the third pressure plate presses on the workpiece; a third screw connection hole is opened in the middle of the third pressure plate, the lower end of the third screw extends into the T-slot of the machine tool worktable and is connected with a nut, and the upper end of the third screw is connected to the third screw connection hole; the upper end of the third pressure plate support abuts against the lower surface of the other end of the third pressure plate, and the lower end of the third pressure plate support abuts against the upper surface of the machine tool worktable.

[0013] Furthermore, in the positioning and clamping device for crossbeams provided by this utility model, it is characterized by further including: a central inclined support mechanism, the number of inclined support mechanisms being consistent with the number of central pressure plate positioning mechanisms and corresponding in position, the inclined support mechanism being supported below the workpiece.

[0014] Furthermore, the positioning and clamping device for crossbeams provided by this utility model may also have the following features: wherein the inclined support mechanism includes an inclined block and a support bolt; the upper surface of the inclined block is an inclined surface, and two bolt holes are opened at different height positions; there are two support bolts, which are respectively installed in the two bolt holes of the inclined block, and the head of the support bolt abuts against the lower surface of the workpiece.

[0015] The beneficial effects of this utility model are:

[0016] According to this utility model, the positioning and clamping device for crossbeams comprises a split design for the end positioning plate mechanism, the end pressure plate positioning mechanism, the middle pressure plate positioning mechanism, the end U-shaped clamp positioning mechanism, and the middle inclined support mechanism. These mechanisms are easy to install, use, and operate, and the manufacturing process of each component is simple, effectively saving manufacturing costs. This utility model is a dedicated positioning and clamping device for crossbeams, improving clamping stability and consistency. Its simple installation and operation enable rapid workpiece clamping, thereby improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the positioning and clamping device for a crossbeam in an embodiment of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the positioning and clamping device for the crossbeam in an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram of the end pressure plate positioning mechanism in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram showing the installation of the end U-shaped clamp positioning mechanism in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram showing the installation of the side pressure plate unit in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram showing the installation of the central pressure plate positioning mechanism and the inclined block in an embodiment of this utility model.

[0023] The diagram shows the following markings: Positioning plate 1; Positioning plate 2; First positioning core 3; Second positioning core 4; Positioning pin 5; Upper pressure plate unit 6; First pressure plate 61; First pressure plate support 62; First screw 63; Side pressure plate unit 7; Second pressure plate 71; Second pressure plate support 72; Second screw 73; U-shaped clamp positioning mechanism 8; U-shaped clamp body 81; Support bolt 82; Middle pressure plate positioning mechanism 9; Third pressure plate 91; Third pressure plate support 92; Third screw 93; Inclined block 10; Support bolt 11; Fixing block 12; Workpiece 100; Machine tool worktable 200. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically illustrate the technical solution of this utility model.

[0025] This utility model provides a positioning and clamping device for a crossbeam, used for positioning and clamping a crossbeam (hereinafter referred to as the workpiece) to be processed. The device includes: an end positioning plate mechanism, an end pressure plate positioning mechanism, a middle pressure plate positioning mechanism, an end U-shaped clamp positioning mechanism, and a middle inclined support mechanism.

[0026] See Figures 1 to 3 The end positioning plate mechanism consists of two sets, symmetrically arranged at the ends of the workpiece. Each set of end positioning plate mechanism includes: positioning plate (including positioning plate 1 and positioning plate 2), first positioning core 3, second positioning core 4, and positioning pin 5.

[0027] The positioning plate 1 on the left and the positioning plate 2 on the right are symmetrical structures, and several mounting holes are provided on the positioning plates. The positioning plates are set vertically. The positioning plate 1 on the left is installed on the left side of the workpiece 100 and is fixed to the workpiece by bolts. The positioning plate 2 on the right is installed on the right side of the workpiece 100 and is fixed to the workpiece by bolts.

[0028] The first positioning core 3 and the second positioning core 4 are used to connect to the corresponding positioning holes on the side of the workpiece 100, see reference. Figure 2 and Figure 3 The first positioning core 3 and the second positioning core 4 are respectively installed and fixed on the side of the positioning plate by the fixing block 12 through threaded connection.

[0029] The locating pin 5 is fixed to the bottom surface of the locating plate. The locating pins on the left locating plate 1 and the right locating plate 2 are symmetrically positioned. The shape and size of the locating pin 5 are adapted to the T-slot cross-section of the machine tool worktable 200. After the locating plate and the workpiece are installed, precise positioning in the X direction of the workpiece table is achieved through the locating pin 5.

[0030] See Figure 1 The end pressure plate positioning mechanism consists of two sets, symmetrically arranged at the ends of the workpiece. Each set of end pressure plate positioning mechanisms includes two pressure plate units 6 and one side pressure plate unit 7. Specifically, the two pressure plate units 6 in each side end pressure plate positioning mechanism correspond to the two apex positions of the top surface of the positioning plate.

[0031] See Figure 4The upper pressure plate unit 6 includes a first pressure plate 61, a first pressure plate support 62, and a first screw 63. One end of the first pressure plate 61 presses against a positioning plate. The upper end of the first pressure plate support 62 abuts against the lower surface of the other end of the first pressure plate 61, and the lower end of the first pressure plate support 62 abuts against the upper surface of the machine tool worktable 200. The first pressure plate support 62 consists of a lower cylinder and an upper bolt. The upper bolt is inserted into the threaded hole of the lower cylinder for threaded connection. The overall height of the first pressure plate support 62 can be adjusted by adjusting the depth of its insertion into the threaded hole. A first screw connection hole is provided in the middle of the first pressure plate 61. The first screw connection hole is set with an oblong hole. The lower end of the first screw 63 extends into the T-slot of the machine tool worktable and is connected with a nut. The upper end of the first screw 63 passes through the first screw connection hole and is fastened by the nut.

[0032] See Figure 5 The side pressure plate unit 7 includes a second pressure plate 71, a second pressure plate support 72, and a second screw 73. One end of the second pressure plate 71 presses against the workpiece 100. One end of the second pressure plate support 72 is threaded to the other end of the second pressure plate 71, and the other end of the second pressure plate support 72 abuts against the side of the positioning plate. A second screw connection hole is provided in the middle of the second pressure plate 71, and the second screw connection hole is a round hole. One end of the second screw 73 is connected to the second screw connection hole, and the other end is connected and fixed to a screw hole on the positioning plate.

[0033] The end U-shaped clamp positioning mechanism 8 consists of two sets, symmetrically arranged at the ends of the workpiece 100. (See reference...) Figure 4 Each set of end U-shaped clamp positioning mechanisms includes a U-shaped clamp body 81 and a support bolt 82. The U-shaped clamp body 81 is used to clamp the workpiece and the positioning plate, and the support bolt 82 is connected to the U-shaped clamp body 81, with the end of the support bolt 82 abutting against the side of the positioning plate. The end U-shaped clamp positioning mechanism achieves the fixation of one side of the workpiece to the positioning plate. This end U-shaped clamp positioning mechanism is compatible with various types of crossbeam products and the clamping operation is convenient and quick.

[0034] See Figure 1 The central pressure plate positioning mechanism 9 is located in the middle of the workpiece 100. The number of central pressure plate positioning mechanisms 9 can be set according to the length of the crossbeam, and there must be at least one set. In this embodiment, for example... Figure 1 The diagram shows two sets of central pressure plate positioning mechanisms 9.

[0035] See Figure 6The central pressure plate positioning mechanism 9 includes: a third pressure plate 91, a third pressure plate support 92, and a third screw 93. One end of the third pressure plate 91 presses against the workpiece. The upper end of the third pressure plate support 92 abuts against the lower surface of the other end of the third pressure plate 91, and the lower end of the third pressure plate support 92 abuts against the upper surface of the machine tool worktable 200. The third pressure plate support 92 has the same structure and working principle as the first pressure plate support 62, and both are adjustable-height pressure plate support structures, which will not be described in detail here. A third screw connection hole is provided in the middle of the third pressure plate 91, and the third screw connection hole is set with an oblong hole. The lower end of the third screw 93 extends into the T-slot of the machine tool worktable and is connected with a nut, and the upper end of the third screw 93 passes through the third screw connection hole and is connected and fastened by the nut.

[0036] See Figure 1 The number of inclined support mechanisms matches the number and position of the central pressure plate positioning mechanisms, with the inclined support mechanisms positioned below the workpiece. (See also...) Figure 6 The inclined support mechanism includes an inclined block 10 and support bolts 11. The upper surface of the inclined block 10 is inclined, with two bolt holes at different heights. Two support bolts 11 are installed in the two bolt holes of the inclined block 10, with the heads of the support bolts abutting against the lower surface of the workpiece. The support height of the support bolts can be adjusted by adjusting the thread depth between the support bolts 11 and the bolt holes to better adapt to the support requirements of the inclined surface of the workpiece.

[0037] The installation and use of the positioning and clamping device for the crossbeam in this embodiment are as follows:

[0038] Two sets of end positioning plate mechanisms are installed and fixed to the left and right sides of the workpiece, respectively, and then connected to the machine tool table via positioning pins. Next, the upper pressure plate unit of the end pressure plate positioning mechanism is installed to press the left and right positioning plates. Then, the workpiece is connected and fixed to the sides of the positioning plates by the end U-shaped clamp positioning mechanism and the side pressure plate unit. Afterward, the middle pressure plate positioning machine and the middle inclined support mechanism are installed to press and support the middle part of the workpiece, preventing vibration and deformation of the workpiece during processing. Thus, the workpiece clamping operation is achieved by the positioning and clamping device for the crossbeam in this embodiment.

[0039] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A positioning and clamping device for a crossbeam, characterized in that, include: End positioning plate mechanism, end pressure plate positioning mechanism, middle pressure plate positioning mechanism; The end positioning plate mechanism consists of two sets, which are symmetrically arranged at the ends of the workpiece. Each set includes a vertically arranged positioning plate, a positioning core installed and fixed on the positioning plate, and a positioning pin. The end pressure plate positioning mechanism consists of two sets, which are symmetrically arranged at the ends of the workpiece. Each set includes an upper pressure plate unit and a side pressure plate unit. The central pressure plate positioning mechanism consists of at least one set, which is located in the middle of the workpiece.

2. The positioning and clamping device for a crossbeam as described in claim 1, characterized in that: in, The positioning core includes a first positioning core and a second positioning core for connecting to the positioning holes on the side of the workpiece. Both the first positioning core and the second positioning core are installed and fixed on the side of the positioning plate.

3. The positioning and clamping device for a crossbeam as described in claim 1, characterized in that: in, The positioning pin is installed and fixed on the bottom surface of the positioning plate, and the shape and size of the positioning pin are adapted to the cross-section of the T-slot of the machine tool worktable.

4. The positioning and clamping device for a crossbeam as described in claim 1, characterized in that: in, Each set of end plate positioning mechanisms includes two upper plate units; The upper pressure plate unit includes a first pressure plate, a first pressure plate support, and a first screw. One end of the first pressure plate presses against the positioning plate; The first pressure plate has a first screw connection hole in the middle, the lower end of the first screw extends into the T-slot of the machine tool worktable and is connected to a nut, and the upper end of the first screw is connected to the first screw connection hole. The upper end of the first pressure plate support abuts against the lower surface of the other end of the first pressure plate, and the lower end of the first pressure plate support abuts against the upper surface of the machine tool worktable.

5. The positioning and clamping device for a crossbeam as described in claim 1, characterized in that: in, Each set of the end plate positioning mechanisms includes a side plate unit; The side pressure plate unit includes a second pressure plate, a second pressure plate support, and a second screw. One end of the second pressure plate presses against the workpiece; One end of the second pressure plate support is threaded to the other end of the second pressure plate, and the other end abuts against the side of the positioning plate; The second pressure plate has a second screw connection hole in the middle. One end of the second screw is connected to the second screw connection hole, and the other end is connected and fixed to the screw hole of the positioning plate.

6. The positioning and clamping device for a crossbeam as described in claim 1, characterized in that, Also includes: End U-shaped clamp positioning mechanism, The two sets of end U-shaped clamp positioning mechanisms are symmetrically arranged at the ends of the workpiece. Each set includes a U-shaped clamp body for clamping the workpiece and a support bolt connected to the U-shaped clamp body. The end of the support bolt abuts against the side of the positioning plate.

7. The positioning and clamping device for a crossbeam as described in claim 1, characterized in that: in, The central pressure plate positioning mechanism includes a third pressure plate, a third pressure plate support, and a third screw. One end of the third pressure plate presses against the workpiece; The third pressure plate has a third screw connection hole in the middle. The lower end of the third screw extends into the T-slot of the machine tool worktable and is connected to a nut. The upper end of the third screw is connected to the third screw connection hole. The upper end of the third pressure plate support abuts against the lower surface of the other end of the third pressure plate, and the lower end of the third pressure plate support abuts against the upper surface of the machine tool worktable.

8. The positioning and clamping device for a crossbeam as described in claim 1 or 7, characterized in that, Also includes: Central slope support mechanism, The number of inclined support mechanisms is the same as the number of central pressure plate positioning mechanisms and their positions correspond. The inclined support mechanisms are supported below the workpiece.

9. The positioning and clamping device for a crossbeam as described in claim 8, characterized in that: in, The slope support mechanism includes a slope block and support bolts; The upper surface of the inclined block is inclined, and two bolt holes are opened at different height positions. There are two support bolts, which are respectively installed in the two bolt holes of the inclined block, and the heads of the support bolts abut against the lower surface of the workpiece.

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