Strong-adaptability clamping device for inner side pushing jig

Abstract

The utility model provides a clamping device with strong adaptability for an inner side pushing jig, which relates to the technical field of jig clamping, and comprises a jig, an L-shaped chute is arranged on the table top of the jig, an L-shaped hollowed-out rail is fixedly connected to the edge of the chute on the table top of the jig, a sliding frame in sliding connection with the bottom of the chute is inserted into the hollowed-out rail, and the sliding frame is fixedly connected with the bottom of the chute. An inserting rail is inserted into the top edge of the sliding frame, the sliding groove is formed in the table top of the jig, the hollowed-out rail is installed on the side edge adjacent to the workpiece placing position of the jig, the position of the sliding frame can be conveniently adjusted through the hollowed-out rail, and in other words, the position of a clamping block installed on the sliding frame can be adjusted relative to the side edge of the workpiece. The distance between the clamping block and the workpiece placing position on the jig can be adjusted through sliding of the inserting rail on the top edge of the sliding frame, that is, the workpiece with the corresponding shape and size can be conveniently placed by adjusting the position of the clamping block, and certain universality is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixture clamping, in particular to a clamping device for an inner pushing fixture with strong adaptability. Background Art

[0002] A fixture, also called a jig, is mainly a tool for assisting in controlling position or movement (or both). When in use, the mold or workpiece to be processed is placed on the fixture, and the clamping part on the fixture is used to clamp and fix the mold or workpiece.

[0003] For example, a clamping fixture for a CNC, with the publication number: CN214770627U. First, two workpieces, namely the plate body, are placed on the top of the support plate, and the two positioning parts of each positioning part are respectively located in the two positioning holes of each plate body. Subsequently, the fixing part is driven by the telescopic cylinder to move towards the workpiece, so that the fixing part simultaneously presses and fixes the two workpieces. During the processing of the workpiece, that is, the plate body, the pressing action of the fixing part on the workpiece and the cooperation between the positioning part and the positioning hole play a role in limiting the workpiece, so that the workpiece is not easily shaken by external forces, and thus it is convenient to ensure the forming quality of the workpiece after processing.

[0004] However, because the position of the set telescopic cylinder is fixed, the relative position of two adjacent telescopic cylinders cannot be adjusted. Therefore, when the workpiece is placed on the support plate, it is necessary to avoid interference with the position of the telescopic cylinder. Therefore, the shape and size of the workpiece that can be placed on the support plate will be restricted. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and a clamping device for an inner pushing fixture with strong adaptability is proposed.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A clamping device for an inner pushing fixture with strong adaptability, including a fixture. The fixture table is provided with an L-shaped chute, and an L-shaped hollow rail is fixedly connected to the edge of the chute on the fixture table. A sliding frame slidably connected to the bottom of the chute is inserted on the hollow rail. The top edge of the sliding frame is inserted with an insertion rail, and the top edge of the insertion rail is inserted with a movable rail. One end of the movable rail is fixedly connected with a clamping block for clamping the workpiece, and a spring rod is connected between one side of the movable rail and the insertion rail. The insertion rail and the movable rail are both arranged parallel to the upper surface of the fixture, and one end of the insertion rail faces the position on the fixture for placing the workpiece.

[0007] Preferably, an extension block is fixedly connected to one side of the sliding frame, and a pin for inserting into the hollow part of the surface of the hollow rail is embedded on the surface of the extension block through a spring.

[0008] Preferably, the bottom edge of one side of the insertion rail extends outward and is provided in a hollow shape. A spring rod is also fixedly installed in the sliding frame. The telescopic end of the spring rod in the sliding frame is fixedly connected to a plug that penetrates the top edge of the sliding frame and is inserted into the hollow part of the insertion rail.

[0009] Preferably, the top edge of the movable rail extends outward on the side away from the plug, and the surface is provided in a hollow shape. A connecting frame is fixedly connected to the outer top edge of the sliding frame on the side away from the plug.

[0010] Preferably, a pin shaft that is threadedly connected to the hollow part of the movable rail is installed at one end of the connecting frame away from the clamping block. An inclined block that is slidably connected to the surface of the pin shaft is slidably installed through the top edge of the sliding frame.

[0011] Preferably, an electric push rod is installed between the bottom surface of the sliding frame and the bottom edge of the inclined block. The contact surface between the inclined block and the pin shaft is provided in an inclined surface and the inclined surface faces the clamping block.

[0012] Preferably, the bottom of the chute is hollow, and a T-shaped column that is slidably connected to the hollow part of the bottom of the chute extends outward from the bottom edge of the sliding frame.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. In the present utility model, by opening a chute on the jig table and installing a hollow rail along the adjacent side of the workpiece placement position on the jig, it is convenient to adjust the position of the sliding frame through the hollow rail, that is, to realize the position adjustment of the clamping block installed on the sliding frame relative to the side of the workpiece. And by sliding the insertion rail on the top edge of the sliding frame, the distance between the clamping block and the workpiece placement position on the jig can be adjusted, that is, by adjusting the position of the clamping block, it is convenient to place workpieces of corresponding shapes and sizes, and it has a certain degree of versatility.

[0015] 2. In the present utility model, by installing a spring rod between the insertion rail and the movable rail, it can ensure the position stability of the movable rail when no external force acts on it under the condition that the position of the insertion rail is fixed, and further ensure that the clamping block will not interfere when placing or taking out the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a clamping device for an inner side pushing jig with strong adaptability proposed by the present utility model;

[0017] Figure 2 is a rear view structural schematic diagram of a slider of a clamping device for an inner side pushing jig with strong adaptability proposed by the present utility model;

[0018] Figure 3 is a side view structural schematic diagram of a clamping device for an inner side pushing jig with strong adaptability proposed by the present utility model Figure 2 ;

[0019] Figure 4 For Figure 1 the enlarged view at position A in

[0020] Legend: 1. Fixture; 2. Slide groove; 3. Clamping block; 4. Hollow rail; 5. Insertion rail; 6. Movable rail; 7. Inclined block; 8. Spring rod; 9. Extension block; 10. Connection frame; 11. Pin; 12. Sliding frame; 13. Pin shaft; 14. Plug-in; 15. Electric push rod. Specific embodiments

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0023] As Figures 1-4 shown, a clamping device for an inner side pushing fixture with strong adaptability includes a fixture 1, where the fixture 1 herein refers to a clamping fixture commonly used in the machining process. The table surface of the fixture 1 is provided with an L-shaped slide groove 2, and an L-shaped hollow rail 4 is fixedly connected to the edge of the slide groove 2 on the table surface of the fixture 1. The slide groove 2 is arranged on one side of the workpiece slot on the fixture 1, and as Figure 1 shown, both sides of the slide groove 2 are respectively located on one of the adjacent sides of the workpiece. A sliding frame 12 that is slidably connected to the bottom of the slide groove 2 is inserted into the hollow rail 4. The bottom of the slide groove 2 is hollow, and a T-shaped column that is slidably connected to the hollow part at the bottom of the slide groove 2 extends outward from the bottom edge of the sliding frame 12. By using the hollow part at the bottom of the groove, it is ensured that the bottom of the sliding frame 12 will not shift during the sliding process. An insertion rail 5 is inserted into the top edge of the sliding frame 12. The inserted insertion rail 5 is convenient for adjusting the position. An insertion rail 5 is inserted into the top edge of the insertion rail 5. One end of the movable rail 6 is fixedly connected to a clamping block 3 for clamping the workpiece, and a spring rod 8 is connected between one side of the movable rail 6 and the insertion rail 5. By sliding the movable rail 6 on the insertion rail 5, the clamping block 3 can be driven to move to clamp the workpiece. In addition, by adjusting the position of the insertion rail 5 or separately adjusting the position of the movable rail 6 on the insertion rail 5, it is convenient to adjust the initial position of the clamping block 3. It is convenient to adjust the initial position of the clamping block 3 according to the size and shape of the placed workpiece by sliding the insertion rail 5 or the sliding frame 12. The insertion rail 5 and the movable rail 6 are both arranged parallel to the upper surface of the fixture 1, and one end of the insertion rail 5 faces the position on the fixture 1 for placing the workpiece, ensuring that when the clamping block 3 adjusts its position as the position of the sliding frame 12 or the insertion rail 5 changes, the clamping block 3 always points to the side of the workpiece.

[0024] One side of the sliding frame 12 is fixedly connected with an extension block 9. A latch 11 for inserting into the hollow part on the surface of the hollow rail 4 is embedded on the surface of the extension block 9 through a spring. The thrust of the spring is used to insert the latch 11 into the hollow on the surface of the hollow rail 4, which is convenient for adjusting the position of the sliding frame 12 on the hollow rail 4.

[0025] One side bottom edge of the insertion rail 5 extends outward and is arranged in a hollow shape. A spring rod 8 is also fixedly installed in the sliding frame 12. The telescopic end of the spring rod 8 in the sliding frame 12 is fixedly connected with a plug 14 that penetrates through the top edge of the sliding frame 12 and is inserted into the hollow of the insertion rail 5. By lifting the plug 14 to move it against the elastic force of the spring rod 8 until it disengages from the hollow on the side of the insertion rail 5, the position of the insertion rail 5 can be slidably adjusted on the top edge of the sliding frame 12. On the contrary, by passing the plug 14 through the hollow on the side of the insertion rail 5 and the top edge of the sliding frame 12, the insertion rail 5 can be fixed on the top edge of the sliding frame 12.

[0026] In addition, one side of the top edge of the movable rail 6 away from the plug 14 also extends outward and its surface is arranged in a hollow shape. One side of the outer top edge of the sliding frame 12 away from the plug 14 is fixedly connected with a connecting frame 10. A pin shaft 13 threadedly connected with the hollow of the movable rail 6 is installed at one end of the connecting frame 10 away from the clamping block 3. An inclined block 7 slidably connected with the surface of the pin shaft 13 is slidably installed through the top edge of the sliding frame 12. An electric push rod 15 is installed between the bottom surface of the inner part of the sliding frame 12 and the bottom edge of the inclined block 7. The contact surface between the inclined block 7 and the pin shaft 13 is an inclined surface and the inclined surface faces the clamping block 3. As Figure 2 shown, the spring rod 8 connecting the movable rail 6 and the insertion rail 5 can ensure the position stability of the insertion rail 5 when the movable rail 6 is not affected by external forces. When the movable rail 6 is subjected to the thrust from the pin shaft 13, the movable rail 6 will overcome the pulling force of the spring rod 8 connected thereto and drive the clamping block 3 to move. The thrust of the pin shaft 13 comes from the elongation of the electric push rod 15 to raise the inclined block 7. When the inclined surface of the inclined block 7 is used to push the pin shaft 13 and the connecting frame 10 restricts the pin shaft 13 to only move horizontally, the pin shaft 13 moves towards the workpiece direction as the inclined block 7 rises, that is, a thrust is generated on the movable rail 6.

[0027] Working principle: According to the shape and size of the workpiece, after pushing the sliding frame 12 to slide along the surface of the hollow rail 4 to the corresponding position, the latch 11 is inserted into the hollow at the corresponding position on the hollow rail 4. Then, the plug 14 is lifted to slidably adjust the position of the insertion rail 5, and further adjust the position of the movable rail 6 and the clamping block 3 on its surface. Then, the relative position of the insertion rail 5 and the sliding frame 12 is fixed again by using the plug 14, that is, the initial position of the clamping block 3 is adjusted. When the workpiece is placed at the corresponding working station on the fixture 1, the electric push rod 15 elongates to raise the inclined block 7, and then the pin shaft 13 is used to push the movable rail 6 and the clamping block 3 to overcome the elastic force of the spring rod 8 and move until the clamping block 3 clamps the side of the workpiece.

[0028] The wiring diagram of the electric push rod 15 in the present utility model belongs to the common general knowledge in the field. Its working principle is already known technology, and its model is selected according to actual use. Therefore, the control method and wiring layout of the electric push rod 15 will not be explained in detail.

[0029] The above are only the preferred embodiments of the present utility model, and are not limitations on the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A clamping device for an inner push fixture with strong adaptability, comprising a fixture (1), characterized in that: The table top of the jig (1) is provided with an L-shaped slide groove (2), and the table top of the jig (1) is located at the edge of the slide groove (2) and is fixedly connected with an L-shaped hollow rail (4); The hollow rail (4) is plugged with a sliding frame (12) which is slidably connected to the bottom of the slide groove (2); the top edge of the sliding frame (12) is plugged with an insert rail (5); the top edge of the insert rail (5) is plugged with a movable rail (6); One end of the movable rail (6) is fixedly connected to a clamping block (3) for clamping a workpiece, and a spring rod (8) is connected between one side of the movable rail (6) and the insertion rail (5); the insertion rail (5) and the movable rail (6) are both arranged parallel to the upper surface of the jig (1), and one end of the insertion rail (5) is arranged toward a position on the jig (1) for placing a workpiece.

2. The clamping device for the inner push fixture with strong adaptability according to claim 1 is characterized in that: An extension block (9) is fixedly connected to one side of the sliding frame (12), and a latch (11) for plugging into a hollow portion of the surface of the hollow rail (4) is embedded in the surface of the extension block (9) through a spring.

3. The clamping device for the inner push fixture with strong adaptability according to claim 1 is characterized in that: The bottom edge of one side of the insertion rail (5) extends outward and is arranged in a hollow shape. A spring rod (8) is also fixedly installed in the sliding frame (12). The telescopic end of the spring rod (8) in the sliding frame (12) is fixedly connected to a plug-in unit (14) that penetrates the top edge of the sliding frame (12) and is plugged into the hollow portion of the insertion rail (5).

4. The clamping device for an inner push fixture with strong adaptability according to claim 1, characterized in that: The side of the top edge of the movable rail (6) away from the plug-in (14) also extends outward and has a hollow surface. The side of the outer top edge of the sliding frame (12) away from the plug-in (14) is fixedly connected to a connecting frame (10).

5. The clamping device for the inner push fixture with strong adaptability according to claim 4 is characterized in that: A pin shaft (13) threadedly connected to the hollow portion of the movable rail (6) is installed at one end of the connection frame (10) away from the clamping block (3), and an inclined block (7) slidably connected to the surface of the pin shaft (13) is slidably installed through the top edge of the sliding frame (12).

6. The clamping device for the inner push fixture with strong adaptability according to claim 5, characterized in that: An electric push rod (15) is installed between the inner bottom surface of the sliding frame (12) and the bottom edge of the inclined block (7); the contact surface between the inclined block (7) and the pin shaft (13) is arranged as an inclined surface and the inclined surface is arranged toward the clamping block (3).

7. The clamping device for an inner push fixture with strong adaptability according to claim 1, characterized in that: The bottom of the slide groove (2) is hollowed out, and the bottom edge of the sliding frame (12) extends outward to form a T-shaped column that is slidably connected to the hollowed-out portion of the bottom of the slide groove (2).

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