Part machining clamp

Abstract

The utility model discloses a part machining clamp. The part machining clamp comprises a bottom plate, a fixing block is installed on the top of the bottom plate, two machining positioning grooves are symmetrically formed in the fixing block, a clamping plate is arranged on one side of the fixing block, a screw rod is rotatably installed on the fixing block and is in threaded connection with the clamping plate, a plurality of chip grooves are evenly formed in the bottoms of the machining positioning grooves, and the chip grooves are in threaded connection with the clamping plate. A supporting ridge plate is formed between every two adjacent chip grooves, and an arc-shaped top is arranged at the top of each supporting ridge plate. According to the part machining clamp, through the arrangement of the bottom plate, the fixing blocks, the clamping plates, the screw rods, the machining positioning groove, the chip groove, the supporting ridge plates and the arc-shaped top, two part blanks can be conveniently and simultaneously clamped and fixed, the part machining efficiency can be improved, chips generated during machining are not prone to staying at the bottom of the machining positioning groove, and the machining efficiency is improved. And the yield of part machining can be improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a parts processing fixture. Background Technology

[0002] In the field of machining, fixtures are needed to clamp and fix parts before machining them.

[0003] Conventional fixtures, especially those used for milling, can typically only clamp and fix one part at a time. Furthermore, the support surface of the fixture is usually flat, which can easily trap debris, causing damage to the bottom of the part or even resulting in excessive deviations in product precision and rendering it unusable.

[0004] Therefore, it is necessary to provide a part machining fixture to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a parts processing fixture that can improve parts processing efficiency and increase the yield of parts processing.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A parts machining fixture includes: a base plate with positioning holes, a fixing block mounted on the top of the base plate, two symmetrical machining positioning slots on the fixing block, each machining positioning slot can hold a square-shaped part blank, which helps to improve the part machining efficiency, a clamping plate on one side of the fixing block, a screw rotatably mounted on the fixing block, the screw passing through the clamping plate and threadedly connected to the clamping plate, and multiple chip removal slots evenly distributed at the bottom of the machining positioning slots, with a supporting rib plate formed between two adjacent chip removal slots, and an arc-shaped top on the top of the supporting rib plate.

[0008] Preferably, the bottom of the chip removal groove is arc-shaped, with a higher center and lower sides.

[0009] Preferably, a chip guide groove is inclinedly formed on the inner side of the machining positioning groove. The outer side of the chip guide groove is lower and the inner side is higher, and its highest point is lower than the lowest point of the chip discharge groove.

[0010] Preferably, two pads are installed on the inner side of the clamping plate, and the two pads are respectively aligned with two machining positioning slots. The pads can be made of materials such as copper.

[0011] Preferably, a guide rod is installed on the inner side of the clamping plate, and a guide hole is provided on the fixing block, into which the guide rod is inserted.

[0012] Preferably, a nut is installed on the screw, and there is at least one nut.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) By setting a base plate, a fixing block, a clamping plate, a screw, a machining positioning groove, a chip removal groove, a supporting rib plate and an arc-shaped top, this utility model can conveniently clamp and fix two part blanks at the same time, which is conducive to improving the part processing efficiency. Moreover, the chips generated during processing are not easy to stay at the bottom of the machining positioning groove, which is conducive to improving the yield of part processing.

[0015] (2) By setting the bottom of the chip removal groove to be arc-shaped, this utility model can facilitate the chip removal groove to discharge chips to both sides.

[0016] (3) By opening a chip guide groove at an inclination inside the machining positioning groove, the chip inside can be easily discharged.

[0017] (4) By installing two pads on the inside of the clamping plate, this utility model can reduce the pressure damage of the clamping plate on the surface of the part blank, thereby improving the quality of the part.

[0018] (5) By setting guide rods and guide holes, this utility model can guide the clamping plate and prevent the clamping plate from rotating around the screw.

[0019] (6) By installing a nut on the screw, this utility model can prevent the screw from reversing and prevent the clamping plate from loosening. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the part processing fixture provided by this utility model;

[0021] Figure 2 for Figure 1 A top view of the fixture for machining the part shown.

[0022] Figure 3 for Figure 1 The diagram shows the structure of the fixing block in the part machining fixture.

[0023] Figure 4 for Figure 1 A partially enlarged schematic diagram of the part machining fixture shown;

[0024] Figure 5 for Figure 1 The diagram shows the structure of the clamping plate in the part machining fixture.

[0025] The corresponding names of the attached figures are: 1-base plate, 2-fixing block, 3-clamping plate, 4-screw, 5-machining positioning groove, 6-chip removal groove, 7-supporting rib plate, 8-arc top, 9-chip guide groove, 10-pad plate, 11-guide rod, 12-guide hole. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0027] Example 1:

[0028] like Figure 1-5 As shown, the part processing fixture provided by this utility model includes: a base plate 1, on which positioning holes are provided. Fixing bolts are passed through the positioning holes to fix the base plate 1 onto a processing platform. A fixing block 2 is installed on the top of the base plate 1. Two processing positioning slots 5 are symmetrically provided on the fixing block 2. Each processing positioning slot 5 can hold a square-shaped part blank, thus allowing two part blanks to be processed alternately, which is beneficial to improving part processing efficiency. A clamping plate 3 is provided on one side of the fixing block 2. A screw 4 is rotatably installed on the fixing block 2, passing through the clamping plate 3 and threadedly connected to it. Multiple chip removal slots 6 are evenly provided at the bottom of the processing positioning slots 5. A supporting ridge plate 7 is formed between adjacent chip removal slots 6. An arc-shaped top 8 is provided on the top of the supporting ridge plate 7. In use, the base plate 1 of this fixture is fixed on the processing platform. On the work platform, the square-shaped part blank is placed on the machining positioning groove 5, with its two sides close to the two right-angled sides of the machining positioning groove 5. The arc-shaped top 8 of the supporting prism plate 7 supports the bottom of the part blank. The screw 4 is rotated to bring the clamping plate 3 close to the fixing block 2, thereby clamping and fixing the two part blanks at the same time. Then, the two part blanks can be processed. After processing, the clamping plate 3 is moved away from the fixing block 2, and the processed part is removed. The machining positioning groove 5 is cleaned with an air gun. Due to the shape of the arc-shaped top 8, the chips generated during processing are not easy to stay on the top of the supporting prism plate 7 (at the arc-shaped top 8). The chips can enter the chip discharge groove 6, which will not cause compression or positioning deviation to the bottom of the part blank, thereby greatly reducing the defect rate and scrap rate of the parts, that is, improving the yield of part processing.

[0029] By setting up a base plate 1, a fixing block 2, a clamping plate 3, a screw 4, a machining positioning groove 5, a chip removal groove 6, a support rib plate 7, and an arc-shaped top 8, it is convenient to clamp and fix two part blanks at the same time, which is beneficial to improve the part processing efficiency. In addition, the chips generated during processing are less likely to stay at the bottom of the machining positioning groove 5, which is beneficial to improve the yield of part processing.

[0030] Example 2:

[0031] like Figure 3 As shown, the bottom of the chip removal groove 6 is arc-shaped, with a high center and low sides. During use, the chips can be discharged along the bottom of the arc-shaped chip removal groove 6 to both sides. This structure makes the structural strength of the middle part of the machining positioning groove 5 the highest.

[0032] By setting the bottom of the chip removal groove 6 to be arc-shaped, it is easier for the chip removal groove 6 to remove chips to both sides.

[0033] Example 3:

[0034] like Figure 2-3 As shown, a chip guide groove 9 is inclinedly provided inside the machining positioning groove 5. The outer side of the chip guide groove 9 is low and the inner side is high. Its highest point is lower than the lowest point of the chip discharge groove 6. Therefore, after the chips discharged from the inner side of the chip discharge groove 6 fall into the chip guide groove 9, the inner chips can be easily discharged.

[0035] By opening a chip guide groove 9 at an angle inside the machining positioning groove 5, it is possible to easily discharge the chips inside.

[0036] Example 4:

[0037] like Figure 5 As shown, two pads 10 are installed on the inner side of the clamping plate 3. The two pads 10 are respectively aligned with the two machining positioning slots 5. The material of the pads 10 can be copper or other materials. When the clamping plate 3 clamps the workpiece blank, the pads 10 contact and press against the workpiece blank. Through the buffering of the pads 10, the pressure damage to the surface of the workpiece blank by the clamping plate 3 can be reduced, thereby improving the quality of the workpiece.

[0038] By installing two pads 10 on the inside of the clamping plate 3, the pressure damage to the surface of the part blank by the clamping plate 3 can be reduced, thereby improving the quality of the part.

[0039] Example 5:

[0040] like Figure 3 and Figure 5 As shown, a guide rod 11 is installed on the inner side of the clamping plate 3, and a guide hole 12 is provided on the fixing block 2. The guide rod 11 is inserted into the guide hole 12, and the guide hole 12 and the guide rod 11 are in clearance fit. When in use, the clamping plate 3 is close to the fixing block 2, so that the guide rod 11 slides in the guide hole 12, which can guide the clamping plate 3 and prevent the clamping plate 3 from rotating around the screw 4.

[0041] By setting the guide rod 11 and the guide hole 12, the clamping plate 3 can be guided to prevent the clamping plate 3 from rotating around the screw 4.

[0042] Example 6:

[0043] like Figure 1-3 As shown, a nut is installed on the screw 4. There is at least one nut. When in use, after the clamping plate 3 clamps the workpiece blank, the nut is rotated so that the nut is pressed tightly against the outside of the clamping plate 3, which can prevent the screw 4 from reversing and prevent the clamping plate 3 from loosening.

[0044] By installing a nut on the screw 4, it is possible to prevent the screw 4 from reversing and to prevent the clamping plate 3 from loosening.

[0045] Working principle: In use, the base plate 1 is fixed on the processing platform, and then the square part blank is placed on the processing positioning groove 5, so that its two sides are close to the two right-angled sides of the processing positioning groove 5. The arc-shaped top 8 of the supporting prism plate 7 supports the bottom of the part blank. Rotate the screw 4 to bring the clamping plate 3 close to the fixing block 2, and then clamp and fix the two part blanks at the same time. Then the two part blanks can be processed in sequence. Compared with the fixture that processes only one part at a time, the use of this fixture can effectively improve the processing efficiency. After processing, move the clamping plate 3 away from the fixing block 2, remove the processed part, and clean the processing positioning groove 5 with an air gun or other methods (such as using cutting fluid to rinse). Due to the shape of the arc-shaped top 8, the chips generated during processing are not easy to stay at the arc-shaped top 8. The chips can easily slide down along the arc-shaped top 8 and enter the chip removal groove 6, which can effectively reduce the possibility of chips squeezing or positioning deviation on the bottom of the part blank, thereby greatly reducing the defect rate and scrap rate of the parts, that is, improving the yield of the parts processing.

Claims

1. A part machining fixture, characterized in that, include: A base plate (1) is provided with a fixing block (2) installed on the top of the base plate (1). Two machining positioning grooves (5) are symmetrically opened on the fixing block (2). A clamping plate (3) is provided on one side of the fixing block (2). A screw (4) is rotatably installed on the fixing block (2). The screw (4) is threadedly connected to the clamping plate (3). Multiple chip removal grooves (6) are evenly opened at the bottom of the machining positioning groove (5). A supporting rib plate (7) is formed between two adjacent chip removal grooves (6). An arc-shaped top (8) is provided on the top of the supporting rib plate (7).

2. The part machining fixture according to claim 1, characterized in that, The bottom of the chip removal groove (6) is arc-shaped.

3. A part machining fixture according to claim 1, characterized in that, The machining positioning groove (5) is inclined inside and has a chip guide groove (9).

4. A part machining fixture according to claim 1, characterized in that, Two pads (10) are installed on the inner side of the clamping plate (3).

5. A parts machining fixture according to claim 1, characterized in that, A guide rod (11) is installed on the inner side of the clamping plate (3), and a guide hole (12) is provided on the fixing block (2). The guide rod (11) is inserted into the guide hole (12).

6. A part machining fixture according to claim 1, characterized in that, A nut is installed on the screw (4).

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