Positioning and clamping device for machining

Abstract

The utility model discloses a machining positioning and clamping device which comprises a bottom plate, at least one set of product clamping assembly is arranged on the bottom plate, each product clamping assembly comprises an extruding and pushing clamping block and a product fixing block, the product fixing blocks are fixed on the bottom plate, the extruding and pushing clamping blocks are arranged in sliding grooves of the bottom plate, and the product fixing blocks are fixed on the bottom plate. One surface of the outer side of the extruding and pushing clamping block is a stress inclined surface, a T-shaped groove is formed in the stress inclined surface, a pressing block is arranged on one side of the stress inclined surface, a T-shaped inclined surface bulge matched with the T-shaped groove is arranged on the pressing block, the pressing block is connected to the bottom plate through an adjusting screw, and a rebounding piece is arranged on the bottom side of the pressing block. Compared with the prior art, the utility model has the advantages that the fool-proof key position groove is arranged, so that the accurate alignment of a product is facilitated, the product can be quickly installed for processing, the fool-proof effect is achieved, and the positioning accuracy and the efficiency are high.

Description

Technical Field

[0001] The utility model relates to a clamping device, in particular to a mechanical processing positioning clamping device. Background Art

[0002] At present, when processing mechanical products, the product is generally positioned by the outer diameter of the product, so as to process the end face hole and the key position inside the hole of the product, and then use the bottom face hole of the product to position it, and use the fourth axis of the CNC machine tool to process the side key position of the product, and finally use the end face hole of the product to position and process the bottom chamfer of the product. The positional relationship between the outer key position and the inner key position of the product is affected during multi-process processing, and the requirements for multi-process processing are very high. At the same time, the original device does not have a fool-proof design, and the clamping direction needs to be confirmed each time during clamping. Long-term fatigue clamping is prone to installation errors. Therefore, the development of a mechanical processing positioning and clamping device has become a problem that needs to be solved by technicians in this field. Utility Model Content

[0003] The utility model provides a mechanical processing positioning clamping device in order to solve the above-mentioned shortcomings.

[0004] The above-mentioned purpose of the utility model is achieved through the following technical scheme: a mechanical processing positioning and clamping device, including a base plate, at least one group of product clamping components is arranged on the base plate, and the product clamping component includes a pushing and clamping block and a product fixing block, the product fixing block is fixed on the base plate, and the pushing and clamping block is arranged in the slide groove of the base plate, and the outer side of the pushing and clamping block is set as a force-bearing inclined surface, and the force-bearing inclined surface is provided with a T-shaped groove, and one side of the force-bearing inclined surface is provided with a clamping block, and the clamping block is provided with a T-shaped inclined surface protrusion adapted to the T-shaped groove, and the clamping block is connected to the base plate through an adjusting screw, and a rebound piece is arranged on the bottom side of the clamping block. The rebound piece can drive the clamping block upward when the adjusting screw is loosened, thereby driving the pushing and clamping block to retreat and loosen the product, and drive the clamping block downward when the adjusting screw is locked, driving the pushing and clamping block to clamp the product.

[0005] Furthermore, a guide fixing block is provided on one side of the pressing block, a guide groove is provided on the guide fixing block, and a guide protrusion cooperating with the guide groove is provided on the pressing block.

[0006] Furthermore, the upper end of the resilient member is connected to the pressing block, and the lower end is connected to the guide fixing block or the bottom plate.

[0007] Furthermore, the resilient member is a compression spring or a spring sheet.

[0008] Furthermore, an anti-foolproof key slot is provided on the upper portion of the product fixing block.

[0009] Furthermore, the height of the product fixing block is 0.3-1 mm higher than the squeezing and clamping block, and is used for positioning the product in the Z direction to avoid affecting the positioning of the product in the Z direction when the squeezing and clamping block moves.

[0010] Furthermore, the opposing surfaces of the squeezing and clamping block and the product fixing block are both provided with contoured structures adapted to the product.

[0011] Furthermore, the base plate is mounted on a machine tool and is locked by a vise on the machine tool.

[0012] Furthermore, the bottom plate is provided with a chip discharge port for product processing debris.

[0013] Furthermore, the squeezing and pushing clamping block comprises a clamping driving block and a product clamping block, the clamping driving block and the product clamping block are connected by screws, and the force-bearing inclined surface and the T-shaped groove are arranged on the outer side surface of the clamping driving block.

[0014] The advantages of the utility model compared with the prior art are:

[0015] 1. The product fixing block of the utility model is provided with an anti-fool key slot for locating the product key position, which is convenient for accurate alignment of the product, can quickly install the product for processing, and plays an anti-fool role, with high positioning accuracy and high efficiency.

[0016] 2. The utility model can be directly clamped on the vise in the machine tool equipment, and can drive the squeezing and pushing clamping block to move left and right by locking or loosening the adjusting bolt, so as to clamp or loosen the product, and the operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a partial exploded structural schematic diagram of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the product clamping assembly in the utility model.

[0020] Figure 4 It is a structural schematic diagram of the guide fixing block in the utility model.

[0021] Figure 5 It is a top view of the guide fixing block in the utility model.

[0022] Figure 6 It is a structural schematic diagram of the squeezing and clamping block and the product fixing block in the utility model.

[0023] Figure 7 It is a side view of the squeezing and clamping block and the product fixing block in the utility model.

[0024] Figure 8 It is a structural schematic diagram of the bottom plate in the utility model in a disassembled state. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1 , Figure 2 As shown, a mechanical processing positioning and clamping device comprises a base plate 1, which is mounted on a machine tool and locked by a vise on the machine tool. Four groups of product clamping components are arranged on the base plate 1, and the product clamping components comprise a squeezing and pushing clamping block 2 and a product fixing block 3. The opposite surfaces of the squeezing and pushing clamping block 2 and the product fixing block 3 are provided with a contoured structure 4 adapted to the product. The product fixing block 3 is fixed on the base plate 1, and the squeezing and pushing clamping block 2 is arranged in a slide groove 5 of the base plate 1. One outer side of the squeezing and pushing clamping block 2 is set as a force-bearing inclined surface, and a T-shaped groove 6 is arranged on the force-bearing inclined surface. A clamping block 15 is arranged on one side of the force-bearing inclined surface, and a T-shaped inclined surface protrusion 7 adapted to the T-shaped groove 6 is arranged on one side of the clamping block 15. A guide fixing block 8 is arranged on the other side of the clamping block 15, and a guide groove 9 is arranged on the guide fixing block 8. A guide protrusion 10 matching the guide groove 9 is arranged on the clamping block 15.

[0027] like Figure 3 , Figure 4 and Figure 5 As shown, the clamping block 15 is connected to the base plate 1 through an adjusting screw 16, and a resilient member 11 is provided on the bottom side of the clamping block 15. The resilient member 11 adopts a compression spring 12 or a spring sheet. In this embodiment, a compression spring 12 is adopted. The upper end of the resilient member 11 is connected to the clamping block 15, and the lower end is connected to the fixed end 17 on the guide fixing block 8 (in other embodiments, the lower end of the resilient member 11 can also be directly connected to the base plate 1). The resilient member 11 can drive the clamping block 15 upward when the adjusting screw 16 is loosened, thereby driving the squeezing and clamping block 2 to retreat and loosen the product. When the adjusting screw 16 is locked, the clamping block 15 is driven downward, driving the squeezing and clamping block 2 to clamp the product.

[0028] like Figure 6 , Figure 7 As shown, in order to accurately place the product, an anti-fool key slot 13 is provided on the upper part of the product fixing block 3, and the height of the product fixing block 3 is 20.3-1mm higher than the squeezing and clamping block, which is used for Z-axis positioning of the product to avoid affecting the Z-axis positioning of the product when the squeezing and clamping block 2 moves.

[0029] In order to facilitate the clamping of various product shapes, the squeeze-pushing clamping block 2 adopts a split design. The squeeze-pushing clamping block 2 includes a clamping drive block 201 and a product clamping block 202, so that different product fixing blocks and product clamping blocks can be replaced when different product shapes are applied. The clamping drive block 201 and the product clamping block 202 are connected by screws, and the force-bearing inclined surface and T-shaped groove 6 are arranged on the outer side of the clamping drive block 201.

[0030] like Figure 8 As shown, in order to facilitate the removal of debris generated during product processing, a chip removal opening 14 is provided on the base plate 1, and the chip removal opening 14 is located between the squeezing and clamping block 2 and the product fixing block 3.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A machining positioning and clamping device, comprising a base plate, on which is provided at least one set of product clamping components, characterized in that: The product clamping assembly includes a pushing clamping block and a product fixing block. The product fixing block is fixed on the base plate. The pushing clamping block is arranged in the slide groove of the base plate. The outer side of the pushing clamping block is set as a force-bearing inclined surface, and a T-shaped groove is provided on the force-bearing inclined surface. A clamping block is provided on one side of the force-bearing inclined surface, and the clamping block is provided with a T-shaped inclined surface protrusion adapted to the T-shaped groove. The clamping block is connected to the base plate by an adjusting screw, and a rebound part is provided on the bottom side of the clamping block.

2. A machining positioning and clamping device according to claim 1, characterized in that: A guide fixing block is provided on one side of the pressing block, a guide groove is provided on the guide fixing block, and a guide protrusion matched with the guide groove is provided on the pressing block.

3. The machining positioning and clamping device according to claim 1, characterized in that: The upper end of the resilient member is connected to the pressing block, and the lower end is connected to the guide fixing block or the bottom plate.

4. A machining positioning and clamping device according to claim 3, characterized in that: The resilient member is a compression spring or a spring sheet.

5. The machining positioning and clamping device according to claim 1, characterized in that: An anti-fouling key slot is provided on the upper portion of the product fixing block.

6. The machining positioning and clamping device according to claim 1, characterized in that: The height of the product fixing block is 0.3-1 mm higher than the squeezing and clamping block.

7. The machining positioning and clamping device according to claim 1, characterized in that: The opposite surfaces of the squeezing and clamping block and the product fixing block are both provided with contoured structures adapted to the product.

8. The machining positioning and clamping device according to claim 1, characterized in that: The base plate is mounted on a machine tool and is locked by a vise on the machine tool.

9. The machining positioning and clamping device according to claim 1, characterized in that: The bottom plate is provided with a chip discharge port for product processing debris.

10. The machining positioning and clamping device according to claim 1, characterized in that: The squeezing and pushing clamping block includes a clamping drive block and a product clamping block, the clamping drive block and the product clamping block are connected by screws, and the force-bearing inclined surface and the T-shaped slot are arranged on the outer side of the clamping drive block.

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