Surface milling clamp and milling equipment

Abstract

The utility model discloses a surface milling clamp and milling equipment, and the surface milling clamp comprises a base which is of a plate-shaped structure; the positioning block is arranged on the base and used for clamping a workpiece; the supporting assembly is arranged on the base and used for supporting the workpiece from the lower portion of the workpiece; and the pressing plate is rotatably arranged on the base, and the pressing plate is used for pressing and fixing the workpiece from the position above the workpiece. According to the surface milling clamp and the milling equipment, the workpiece is rapidly positioned through the positioning block and the supporting assembly, and the workpiece can be pressed and fixed through the pressing plate, so that the workpiece is prevented from moving in the machining process, the machining surface is prevented from inclining or pricking a cutter, and the machining quality and the machining efficiency of the workpiece are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling processing, and more specifically, to a milling surface fixture. In addition, the utility model also relates to a milling device comprising the milling surface fixture. Background Art

[0002] The bearing cap is a crucial engine component. It is assembled with the engine block to form the crankshaft bore for mounting the diesel engine's crankshaft. According to the process flow, starting with the cast blank, the height-direction plane of the bearing cap must be machined first, followed by the planes and holes of the remaining parts. Operators typically use marking to align the workpiece, first machining a flat surface and using this as a reference for machining the remaining parts. This method is conventional, time-consuming, and labor-intensive. Furthermore, the workpiece is roughly positioned on the blank surface, without any appropriate measures to prevent movement. This makes positioning unreliable, and with even moderately high machining volumes, it can easily shift, causing the machined surface to deflect or the tool to become stuck, severely impacting machining quality and efficiency.

[0003] In summary, how to improve the machining quality and efficiency of workpieces is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a milling fixture, which can quickly position the workpiece through the positioning block and the support assembly, and can press and fix the workpiece through the pressure plate to prevent the workpiece from moving during processing, thereby improving the processing quality and efficiency of the workpiece.

[0005] Another object of the present utility model is to provide a milling device comprising the above-mentioned milling fixture.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A milling fixture, comprising:

[0008] The base is a plate-like structure;

[0009] A positioning block is provided on the base, and is used to clamp a workpiece;

[0010] a supporting assembly, disposed on the base and used to support the workpiece from below the workpiece;

[0011] A pressing plate is rotatably arranged on the base, and the pressing plate is used to press and fix the workpiece from above.

[0012] Preferably, the positioning block includes a first positioning block and a second positioning block, the first positioning block is a V-shaped structure and is used to clamp the first end of the workpiece, and the upper end surface of the second positioning block is an inclined surface and is used to support the second end of the workpiece.

[0013] Preferably, the workpiece is an arc-shaped structure, the positioning block further includes a third positioning block, a positioning pin is provided on the base, the third positioning block is an arc-shaped structure, the third positioning block is provided on the positioning pin and abuts against the inner wall of the workpiece.

[0014] Preferably, a first bracket is provided on the base, and the first positioning block is fixed to the upper end of the first bracket by screws.

[0015] Preferably, the support assembly is a length-adjustable support screw and a locking nut, the support screw and the locking nut are matched with each other and at least two pairs are provided, and the locking nut is used to lock the length of the support screw extending out of the base.

[0016] Preferably, a second bracket is provided on the base, and the pressing plate is rotatably provided on the second bracket via a pin shaft.

[0017] Preferably, a pressing assembly for pressing the pressing plate is further provided on the base, and the pressing assembly includes a pressing plate and an adjusting rod. The adjusting rod is arranged perpendicular to the base, and the pressing plate can be slidably arranged along the adjusting rod.

[0018] Preferably, the clamping assembly further comprises a guide rod arranged perpendicular to the base, the clamping plate is provided with a through hole, and the diameter of the end of the guide rod away from the base is smaller than the diameter of the end of the guide rod close to the base.

[0019] Preferably, a side of the pressing plate facing the clamping plate is provided with an arcuate end surface, and the arcuate end surface protrudes toward the pressing plate.

[0020] A milling device comprises a milling fixture, wherein the milling fixture is any one of the above-mentioned milling fixtures.

[0021] The utility model provides a milling surface fixture, wherein a positioning block, a support assembly and a pressure plate are provided on the base of the fixture, the positioning block can clamp the workpiece, and a support assembly is provided below the workpiece, which can support the workpiece, thereby adjusting the horizontal position of the workpiece, and the pressure plate provided on the base can rotate relative to the base, and the side of the workpiece is clamped by the positioning block, and after the bottom is supported by the support assembly, the workpiece is pressed and positioned from above the workpiece by the pressure plate to ensure that the workpiece does not move during the milling process, and can avoid tilting or tool jamming of the processed surface, thereby improving the processing quality and processing efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 This is a front view of the milling fixture provided by the utility model;

[0024] Figure 2 This is a top view of the milling fixture provided by the utility model.

[0025] Reference numerals:

[0026] 1-base; 2-first bracket; 3-screw; 4-first positioning block; 5-third positioning block; 6-locating pin; 7-second positioning block; 8-pressing plate; 9-clamping assembly; 10-pin shaft; 11-second bracket; 12-support assembly; 13-workpiece. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The core of the utility model is to provide a milling fixture, which can stably clamp and position the workpiece to avoid tilting of the machining surface or tool jamming, thereby improving the machining quality and machining efficiency of the workpiece.

[0029] Another core of the utility model is to provide a milling device including the above-mentioned milling fixture.

[0030] It should be noted that the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application.

[0031] The present application provides a milling fixture comprising: a base 1, a positioning block, a support assembly 12 and a pressing plate 8;

[0032] Wherein, the base 1 is a plate-like structure;

[0033] The positioning block is provided on the base 1 and is used to clamp the workpiece 13;

[0034] The support assembly 12 is provided on the base 1 and is used to support the workpiece 13 from below the workpiece 13;

[0035] The pressing plate 8 is rotatably disposed on the base 1 , and is used to press and fix the workpiece 13 from above.

[0036] For details, please refer to the attached Figure 1 The base 1 is a horizontally arranged plate-like structure, and the positioning block, support assembly 12 and pressure plate 8 are all arranged on the upper end surface of the base 1. The positioning block can clamp and position the workpiece 13 in the horizontal direction to prevent the workpiece 13 from being displaced in the horizontal direction. A support assembly 12 is also provided below the workpiece 13, and a rotatable pressure plate 8 is provided on the side of the workpiece 13. The workpiece 13 is placed on the support assembly 12. After the preliminary positioning of the workpiece 13 is achieved by the positioning block, the pressure plate 8 is rotated and pressed against the upper surface of the workpiece 13. The support assembly 12 can be used to position the workpiece 13 in the vertical direction. Therefore, in the process of milling the workpiece 13, the deflection or jamming of the machined surface can be avoided. Compared with the method of marking, aligning and rough positioning in the background technology, the above-mentioned milling fixture can greatly improve the processing quality and efficiency of the workpiece 13.

[0037] Based on the above embodiment, the positioning block includes a first positioning block 4 and a second positioning block 7. The first positioning block 4 is a V-shaped structure and is used to clamp the first end of the workpiece 13. The upper end face of the second positioning block 7 is a slope and is used to support the second end of the workpiece 13.

[0038] Specifically, there are two positioning blocks, namely the first positioning block 4 and the second positioning block 7. Figure 1 The first positioning block 4 is arranged on the left side of the base 1, and the second positioning block 7 is arranged on the right side of the base 1. The first positioning block 4 is a V-shaped structure, which can clamp the first end of the workpiece 13. The inclined surface on the second positioning block 7 is an inclined surface that gradually rises from left to right to adapt to the support of the second end of the workpiece 13, and cooperates with the pressure plate 8 to realize the positioning of the workpiece 13.

[0039] Optionally, two first positioning blocks 4 may be provided, and the two first positioning blocks 4 should be arranged along the attached Figure 2 The first bracket 2 is arranged in the up and down directions to be suitable for different workpieces 13.

[0040] Based on the above embodiment, the workpiece 13 is an arc-shaped structure, the positioning block also includes a third positioning block 5, a positioning pin 6 is provided on the base 1, the third positioning block 5 is an arc-shaped structure, the third positioning block 5 is provided on the positioning pin 6 and abuts against the inner wall of the workpiece 13.

[0041] Specifically, the structure of the workpiece 13 can be referred to in the attached Figure 2 As shown, it is an arc-shaped structure, a positioning pin 6 is provided on the base 1, and a third positioning block 5 is provided on the positioning pin 6. It should be noted that the third positioning block 5 is designed as an arc surface, which can be used for positioning the inner arc surface of the workpiece 13. The third positioning block 5 is pressed on the positioning pin 6 by a nut, and cooperates with the first positioning block 4 and the second positioning block 7 to realize the horizontal positioning of the workpiece 13.

[0042] Optionally, a plurality of third positioning blocks 5 should be provided, and the curvature of each third positioning block 5 is different to be suitable for different workpieces 13 .

[0043] On the basis of the above embodiment, a first bracket 2 is provided on the base 1 , and a first positioning block 4 is fixed to the upper end of the first bracket 2 by means of screws 3 .

[0044] Specifically, the first bracket 2 is also a plate-like structure, and a threaded hole is provided on the end face of the first bracket 2 facing the third positioning block 5, and a through threaded hole is provided on the first positioning block 4. The first positioning block 4 is installed on the upper end of the first bracket 2 by a screw 3. There is a certain gap between the lower end face of the first positioning block 4 and the base 1, so as to cooperate with the support assembly 12 to support and position the workpiece 13.

[0045] Optionally, a plurality of threaded holes may be provided on the first bracket 2 , and the plurality of threaded holes may be evenly arranged along the vertical direction, so as to facilitate adjustment of the position of the first bracket 2 in the vertical direction.

[0046] In some embodiments, the support assembly 12 is a length-adjustable support screw and a locking nut. The support screw and the locking nut are matched and provided in at least two pairs. The locking nut is used to lock the length of the support screw extending out of the base 1.

[0047] Specifically, the support assembly 12 is an adjustable threaded structure, including a support screw and a locking nut, which is suitable for supporting the blank. After determining the height of the first positioning block 4, the support screw can be adjusted to the appropriate height and then locked. This structural design can effectively prevent the bearing cover from being deformed under stress and avoid the risk of uneven processing surface.

[0048] Optionally, the top of the support screw can be set to an arc-shaped surface to improve the supporting effect on the workpiece 13.

[0049] In some embodiments, a second bracket 11 is provided on the base 1 , and the pressing plate 8 is rotatably provided on the second bracket 11 via a pin 10 .

[0050] Specifically, a second bracket 11 is provided on the base 1 at a position away from the first bracket 2, that is, a second bracket 11 is provided on the right side of the base 1, and a pin shaft 10 is provided on the second bracket 11. The pressure plate 8 is rotatably provided on the upper end of the second bracket 11 through the pin shaft 10. The rotation center axis of the pressure plate 8 is higher than the base 1, and is used to adapt to the workpiece 13 supported by the support assembly 12.

[0051] Generally speaking, when the lower end surface of the pressing plate 8 rotates to a horizontal state, the lower end surface of the pressing plate 8 is completely in contact with the upper end surface of the workpiece 13, thereby achieving an optimal limiting effect.

[0052] On the basis of the above embodiment, a clamping assembly 9 for clamping the pressure plate 8 is further provided on the base 1. The clamping assembly 9 includes a clamping plate and an adjusting rod. The adjusting rod is arranged perpendicular to the base 1, and the clamping plate can be slidably arranged along the adjusting rod.

[0053] Specifically, a clamping assembly 9 is also provided on the base 1, and the clamping assembly 9 is arranged as close to the pressure plate 8 as possible. The clamping assembly 9 includes an adjusting rod and a clamping plate. The clamping plate can be slid up and down along the adjusting rod. A locking nut is provided at the upper end of the adjusting rod. After the workpiece 13 is pressed by the pressure plate 8, the clamping plate of the clamping assembly 9 is adjusted so that the clamping plate can abut against the upper end of the pressure plate 8, and the clamping plate is locked by the locking nut on the adjusting rod to achieve complete positioning of the workpiece 13.

[0054] Optionally, the pressing component 9 can be replaced by a combination of a cylinder and a pressing plate, which can achieve the same technical effect.

[0055] Based on the above embodiment, the clamping assembly 9 also includes a guide rod arranged perpendicular to the base 1, a through hole is provided on the clamping plate, and the diameter of the end of the guide rod away from the base 1 is smaller than the diameter of the end of the guide rod close to the base 1.

[0056] Specifically, a guide rod is provided on the side of the clamping assembly 9 facing away from the pressure plate 8, and a through-hole is provided on the pressure plate. The guide rod is also arranged perpendicular to the base 1. The upper end size of the guide rod should be smaller than the lower end size. During the downward movement of the pressure plate, the upper end of the guide rod can smoothly pass through the through-hole on the pressure plate. The maximum diameter of the guide rod should be the same as or slightly smaller than the diameter of the through-hole to ensure that the guide rod can have a guiding function.

[0057] Optionally, the length of the guide rod can be set to be longer than the cylindrical structure of the pressing plate, so that the guide rod always passes through the through hole to ensure the guiding function of the guide rod.

[0058] On the basis of the above embodiment, a side of the pressing plate 8 facing the clamping plate is provided with an arc-shaped end surface, and the arc-shaped end surface protrudes toward the pressing plate 8 .

[0059] Specifically, the end face of the pressing plate 8 facing away from the workpiece 13 is an arc-shaped surface, which is conducive to the clamping assembly 9 clamping the pressing plate 8 before and during milling. The pressing plate 8 rotates around the pin shaft 10 to facilitate the loading and unloading of the workpiece.

[0060] Optionally, the pressure plate 8 can be set as a plate-like structure, and a protrusion with an arc-shaped upper end is set on the side facing the pressure plate to reduce costs and achieve the same technical effect as the arc-shaped end face.

[0061] In addition to the above-mentioned milling fixture, the present invention also provides a milling device including the milling fixture disclosed in the above-mentioned embodiment. For the structures of other parts of the milling device, please refer to the prior art and will not be described in detail herein.

[0062] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0063] The above is a detailed introduction to the milling fixture and milling equipment provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, various improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A milling fixture, characterized in that: include: The base (1) is a plate-shaped structure; A positioning block, provided on the base (1), the positioning block being used to clamp a workpiece (13); a support assembly (12), disposed on the base (1) and used to support the workpiece (13) from below the workpiece (13); A pressing plate (8) is rotatably arranged on the base (1), and the pressing plate (8) is used to press and fix the workpiece (13) from above the workpiece (13).

2. The milling fixture according to claim 1, characterized in that: The positioning block comprises a first positioning block (4) and a second positioning block (7); the first positioning block (4) is a V-shaped structure and is used to clamp the first end of the workpiece (13); the upper end surface of the second positioning block (7) is an inclined surface and is used to support the second end of the workpiece (13).

3. The milling fixture according to claim 2, characterized in that: The workpiece (13) is an arc-shaped structure, the positioning block further includes a third positioning block (5), a positioning pin (6) is provided on the base (1), the third positioning block (5) is an arc-shaped structure, the third positioning block (5) is provided on the positioning pin (6) and abuts against the inner wall of the workpiece (13).

4. The milling fixture according to claim 3, characterized in that: A first bracket (2) is provided on the base (1), and the first positioning block (4) is fixed to the upper end of the first bracket (2) by means of screws (3).

5. The milling fixture according to claim 1, characterized in that: The support assembly (12) comprises a length-adjustable support screw and a locking nut. The support screw and the locking nut are matched and provided with at least two pairs. The locking nut is used to lock the length of the support screw extending from the base (1).

6. The milling fixture according to claim 1, characterized in that: A second bracket (11) is provided on the base (1), and the pressing plate (8) is rotatably provided on the second bracket (11) via a pin shaft (10).

7. The surface milling fixture according to any one of claims 1 to 6, characterized in that: The base (1) is further provided with a pressing assembly (9) for pressing the pressing plate (8). The pressing assembly (9) comprises a pressing plate and an adjusting rod. The adjusting rod is arranged perpendicular to the base (1), and the pressing plate can be slidably arranged along the adjusting rod.

8. The milling fixture according to claim 7, characterized in that: The clamping assembly (9) further comprises a guide rod arranged perpendicular to the base (1), a through hole is provided on the clamping plate, and the diameter of the end of the guide rod facing away from the base (1) is smaller than the diameter of the end of the guide rod close to the base (1).

9. The milling fixture according to claim 8, characterized in that: The pressing plate (8) is provided with an arcuate end surface on a side facing the clamping plate, and the arcuate end surface protrudes toward the pressing plate (8).

10. A milling device comprising a milling fixture, characterized in that: The milling fixture is the milling fixture according to any one of claims 1 to 9.

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