Clamping jig for CNC machining of shaft products

Abstract

The utility model provides a clamping jig for CNC machining shaft products, which comprises a clamp main body and a plurality of clamping blocks, a lower shaft product accommodating groove is arranged on the upper end face of the clamp main body, the lower shaft product accommodating groove extends along the length direction of the clamp main body, upper shaft product accommodating grooves are arranged on the lower end faces of the plurality of clamping blocks, and the upper shaft product accommodating grooves extend along the length direction of the clamp main body. The multiple clamping blocks are arranged on the upper end face of the clamp body at intervals and detachably connected with the clamp body, and the lower shaft product containing groove and the lower shaft product containing groove are oppositely arranged and used for wrapping shaft products. And a plurality of positioning pins for positioning the shaft products are arranged in the shaft product lower accommodating groove. According to the clamping jig for CNC machining of the shaft products, the positioning pins and the clamping blocks are adopted for positioning and clamping the products, the time for repeated positioning is shortened, the machining precision is guaranteed, parts cannot deform, clamping is easy, the product precision is guaranteed, and the product machining efficiency and stability are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to CNC processing fixture technical field, concretely relates to a kind of clamping fixture of CNC processing shaft product. BACKGROUND

[0002] The inclined surface of shaft parts is machined by using a vice and a pressing block. This method has the following defects: each part needs to be positioned, which is time-consuming and labor-intensive, and the machining accuracy cannot be guaranteed, and the product is deformed. INVENTION CONTENTS

[0003] To solve the above problems, the utility model provides a kind of clamping fixture of CNC processing shaft product

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of clamping fixture of CNC processing shaft product, including fixture main body and multiple clamping blocks, shaft product lower accommodating groove is opened on the upper end face of the fixture main body, the shaft product lower accommodating groove extends along the length direction of fixture main body, shaft product upper accommodating groove is provided on the lower end face of multiple clamping blocks, multiple clamping blocks are spaced apart on the upper end face of the fixture main body, and are detachably connected with the fixture main body, the shaft product lower accommodating groove and the shaft product lower accommodating groove are oppositely arranged for wrapping shaft product;Multiple positioning pins for positioning shaft product are provided in the shaft product lower accommodating groove.

[0006] Further, the length of the shaft product lower accommodating groove is the same as the length of the fixture main body.

[0007] Further, the clamping fixture further includes a limiting block, the limiting block is provided on one side of the fixture main body in the width direction, and is detachably connected with the fixture main body.

[0008] Further, multiple screw holes are oppositely provided on one side of the limiting block and the fixture main body in the width direction, and the limiting block and the fixture main body are connected by bolts.

[0009] Further, multiple positioning holes are spaced apart in the shaft product lower accommodating groove, and multiple positioning pins are inserted into the positioning holes.

[0010] Further, the number of positioning holes is 2, and is respectively provided on both ends of the length direction of the shaft product lower accommodating groove.

[0011] Further, the diameter of the shaft product lower accommodating groove and the shaft product upper accommodating groove is the same as the diameter of the shaft product.

[0012] Further, the longitudinal section of the clamping block is in the shape of a convex character, and the upper accommodating groove of the shaft product is arranged directly below the convex part.

[0013] Further, two screw holes are symmetrically arranged on the upper end face on both sides of the convex part of the clamping block, and a plurality of groups of screw holes are symmetrically arranged on the upper end face of the clamp body on both sides of the lower accommodating groove of the shaft product, and the clamping block is connected with the clamp body through bolts.

[0014] Further, the number of the clamping blocks is two, and the two clamping blocks are symmetrically arranged with respect to the middle longitudinal surface of the clamp body in the width direction; a downward notch is arranged on the upper end face of the clamp body on one side of the lower accommodating groove of the shaft product, the notch is communicated with the lower accommodating groove of the shaft product, and the notch is located between the two clamping blocks.

[0015] The clamping jig for CNC machining of shaft products has the advantages that the positioning pin and the clamping block are used to position and clamp the product, the time for repeated positioning is reduced, the machining precision is ensured, the product precision is ensured, and the efficiency and stability of product machining are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The utility model discloses a disassembling structure schematic diagram of the clamping jig for CNC machining of shaft products.

[0017] Fig. 2 The utility model discloses an assembly structure perspective drawing of the clamping jig for CNC machining of shaft products.

[0018] Wherein, 1-clamp body, 2-clamping block, 3-bolt, 4-positioning pin, 5-limiting block, 11-shaft product lower accommodating groove, 12-positioning hole, 13-notch, 21-shaft product upper accommodating groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, not as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] As Figs. 1-2As shown, a clamping jig for machining shaft products by CNC includes a jig body 1 and a plurality of clamping blocks 2. A shaft product lower accommodating groove 11 is formed on the upper end surface of the jig body 1 and extends along the length direction of the jig body 1. A shaft product upper accommodating groove 21 is arranged on the lower end surface of each clamping block 2. The plurality of clamping blocks 2 are arranged on the upper end surface of the jig body 1 at intervals and are detachably connected to the jig body 1. The shaft product lower accommodating groove 11 and the shaft product upper accommodating groove 21 are oppositely arranged to wrap the shaft product. A plurality of positioning pins 4 for positioning the shaft product are arranged in the shaft product lower accommodating groove 11.

[0021] It can be understood that the clamping blocks 2 cooperate with the jig body 1 to wrap the shaft product, achieving positioning of the shaft product in the radial direction. The positioning pins 4 position the shaft product in the axial direction, achieving one-time accurate positioning, reducing the time for repeated positioning, ensuring the machining accuracy and preventing the deformation of the part.

[0022] Further, the length of the shaft product lower accommodating groove 11 is the same as the length of the jig body 1.

[0023] It can be understood that setting the length of the shaft product lower accommodating groove 11 to be the same as the length of the jig body 1 allows more shaft products of different lengths to be machined.

[0024] Further, the clamping jig further includes a limiting block 5 arranged on one side surface of the jig body 1 in the width direction and detachably connected to the jig body 1.

[0025] It can be understood that the limiting block 5 further limits the shaft product before the positioning pins 4 position the shaft product, preventing the shaft product from moving during the machining process.

[0026] Further, a plurality of screw holes are oppositely arranged on the limiting block 5 and the one side surface of the jig body 1 in the width direction. The limiting block 5 is connected to the jig body 1 by bolts 3, facilitating the disassembly of the limiting block 5.

[0027] Further, a plurality of positioning holes 12 are arranged at intervals in the shaft product lower accommodating groove 11. The plurality of positioning pins 4 are inserted into the positioning holes 12.

[0028] It can be understood that the positioning holes 12 are used to fix the positioning pins 4, facilitating the change of the position of the positioning pins 4 according to the condition of the shaft product.

[0029] In the embodiment, the number of the positioning holes 12 is two, which are respectively arranged at the two ends of the length direction of the lower accommodating groove 11 of the shaft product. Of course, in other embodiments, the number of the positioning holes 12 can be determined according to the situation, for example, when the shaft product is long, three or more positioning holes 12 and positioning pins 4 can be arranged.

[0030] Further, the diameters of the lower accommodating groove 11 of the shaft product and the upper accommodating groove 21 of the shaft product are the same as the diameter of the shaft product.

[0031] It can be understood that the shaft product is wrapped and the shaft product is radially compressed and positioned at the same time.

[0032] Further, the longitudinal section of the clamp block 2 is in the shape of a convex character, and the upper accommodating groove 21 of the shaft product is arranged directly below the convex part. Two screw holes are symmetrically arranged on the upper end surface of the convex part on both sides of the clamp block 2, and a plurality of groups of screw holes are symmetrically arranged on the upper end surface of the clamp body 1 on both sides of the lower accommodating groove 11 of the shaft product. The clamp block 2 is connected with the clamp body 1 through the bolts 3.

[0033] The number of the clamp blocks 2 is two, and the two clamp blocks 2 are symmetrically arranged with respect to the middle longitudinal surface of the width direction of the clamp body 1. A downward notch 13 is arranged on the upper end surface of the clamp body 1 on one side of the lower accommodating groove 11 of the shaft product, the notch 13 is communicated with the lower accommodating groove 11 of the shaft product, and the notch 13 is located between the two clamp blocks 2. Of course, in other embodiments, the number of the clamp blocks can also be other numbers, which are not limited here.

[0034] It should be understood by those skilled in the art that the above only describes specific embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clamping fixture for CNC machining shaft products, characterized in that: It includes a fixture body and multiple clamping blocks, a lower accommodating groove for shaft products is provided on the upper end surface of the fixture body, the lower accommodating groove for shaft products extends along the length direction of the fixture body, and an upper accommodating groove for shaft products is provided on the lower end surfaces of multiple clamping blocks, multiple clamping blocks are arranged at intervals on the upper end surface of the fixture body, and are detachably connected to the fixture body, the lower accommodating groove for shaft products and the lower accommodating groove for shaft products are arranged relative to each other for wrapping shaft products; multiple positioning pins for positioning shaft products are provided in the lower accommodating groove for shaft products.

2. The clamping fixture for CNC machining shaft products according to claim 1, characterized in that: The length of the lower accommodating groove of the shaft product is the same as the length of the clamp body.

3. The clamping fixture for CNC machining shaft products according to claim 2, characterized in that: The clamping fixture further includes a limit block, which is arranged on one side surface of the clamp body in the width direction and is detachably connected to the clamp body.

4. The clamping fixture for CNC machining shaft products according to claim 3, characterized in that: A plurality of screw holes are relatively provided on one side surface of the limit block and the clamp body in the width direction, and the limit block is connected to the clamp body through bolts.

5. The clamping fixture for CNC machining shaft products according to claim 1, characterized in that: A plurality of positioning holes are arranged at intervals in the lower receiving groove of the shaft product, and a plurality of positioning pins are inserted into the positioning holes.

6. The clamping fixture for CNC machining shaft products according to claim 5, characterized in that: There are two positioning holes, which are respectively arranged at both ends of the length direction of the lower accommodating groove of the shaft product.

7. The clamping fixture for CNC machining shaft products according to claim 1, characterized in that: The diameters of the lower accommodating groove for the shaft product and the upper accommodating groove for the shaft product are the same as the diameter of the shaft product.

8. The clamping fixture for CNC machining shaft products according to claim 1, characterized in that: The longitudinal section of the clamping block is in a convex shape, and the receiving groove on the shaft product is arranged directly below the convex portion.

9. The clamping fixture for CNC machining shaft products according to claim 8, characterized in that: Two screw holes are symmetrically provided on the upper end surface on both sides of the protruding part of the clamp block, and multiple groups of screw holes are symmetrically provided on the upper end surface of the clamp body on both sides of the lower accommodating groove of the shaft product. The clamp block is connected to the clamp body by bolts.

10. The clamping fixture for CNC machining shaft products according to claim 9, characterized in that: There are two clamping blocks, and the two clamping blocks are symmetrically arranged relative to the middle longitudinal plane in the width direction of the clamp body; a downward-facing notch is provided on the upper end surface of the clamp body located on the side of the lower accommodating groove of the shaft product, and the notch is connected to the lower accommodating groove of the shaft product, and the notch is located between the two clamping blocks.

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