A multi-piece workpiece clamping device for milling bevels

Abstract

The application discloses a multi-piece workpiece clamping device for milling bevels, comprising a first fixed plate and a second fixed plate arranged oppositely, a clamp plate and a abutting assembly. When the bevels on the workpiece need to be processed, the clamping device is clamped on the vice. Since the clamp plate is provided with a containing groove for positioning the workpiece, the bevels to be processed are horizontal after the workpiece is placed, and no alignment is needed, so that the milling cutter of the milling machine can process the bevels. The first fixed plate and the containing groove accurately position the workpiece, and the gap hole can avoid the deformation of the cylindrical part caused by clamping force. When the second fixed plate approaches the first fixed plate, the abutting assembly and the first fixed plate of the step can clamp the workpiece. The clamping device has simple structure and low manufacturing cost, and can realize the processing of multi-piece workpieces as long as there is a vice, greatly improves the efficiency, reduces the frequency of frequent loading and unloading of the operator, and reduces the labor intensity of the operator.

Description

Technical Field

[0001] This application relates to the field of machining tooling equipment technology, and in particular to a multi-workpiece clamping device for milling inclined surfaces. Background Technology

[0002] Machining involves a wide variety of workpieces, with diverse structures, shapes, and dimensions. Some workpieces, due to their small size, present challenges in clamping during machining, and current machining methods, which rely on single-piece processing on ordinary vertical milling machines, are highly inefficient. For example, one type of workpiece, while simple in shape, is difficult to clamp due to its small size. (See simplified drawing of the workpiece). Figure 1 and Figure 2 The machining requirement is to machine a beveled surface on one edge of a cuboid. Currently, the machining method involves rotating the spindle of a vertical milling machine to the required angle, then clamping the workpiece in a vise for individual machining. Each workpiece presents a clamping and alignment problem, resulting in lengthy auxiliary time and requiring frequent workpiece loading and unloading by the operator, significantly reducing machining efficiency. Therefore, how to effectively solve the workpiece clamping problem, and simultaneously improve efficiency, is a pressing issue for technicians. Summary of the Invention

[0003] This application provides a multi-workpiece clamping device for milling inclined surfaces, which can solve the technical problems of difficult workpiece clamping and low clamping efficiency in the prior art. The technical solution is as follows:

[0004] A clamping device for milling beveled surfaces of multiple workpieces is disclosed. The workpieces include a cuboid portion and a cylindrical portion disposed on one end face of the cuboid portion. The workpieces require a beveled surface to be machined on one edge of the cuboid portion parallel to the central axis of the cylindrical portion. The clamping device includes: a first fixing plate and a second fixing plate disposed opposite to each other, a clamping plate, and a stop assembly. The first fixing plate has at least one clearance hole matching the cylindrical portion for inserting the cylindrical portion of the workpiece. The clamping plate is fixedly connected to the side of the first fixing plate facing the second fixing plate and has at least one receiving groove for positioning the cuboid portion. The number of receiving grooves is equal to the number of clearance holes. The first fixing plate and the receiving grooves are used to position the workpiece so that the beveled surface to be machined is horizontal. The second fixing plate has a stop assembly on the side facing the first fixing plate, which abuts against the end of the workpiece facing the second fixing plate. When the first fixing plate and the second fixing plate approach each other, the workpiece is fixed.

[0005] Optionally, each of the receiving grooves is inclined, and the angle between the bottom surface of the receiving groove and the horizontal plane is ∠α. When the angle between the bottom surface of the receiving groove and the horizontal plane is ∠α, the angle between the oblique cut surface of the workpiece to be processed and the horizontal plane is 0°.

[0006] Optionally, the number of receiving slots is two; the abutment assembly includes a U-shaped abutment member, the U-shaped abutment member includes two parallel abutment arms and a connecting part connecting the two abutment arms, the connecting part is provided with a vertical first through hole, and the U-shaped abutment member is horizontally hinged to the side of the second fixing plate facing the first fixing plate by a first pin.

[0007] Optionally, the number of receiving slots is four, with each pair of receiving slots forming a group of receiving slots; the two groups of receiving slots are arranged horizontally; the abutment assembly includes two U-shaped abutment members and a floating frame, the U-shaped abutment members including two parallel abutment arms and a connecting part connecting the two abutment arms, the connecting part being provided with a vertical first through hole; the floating frame has two receiving cavities arranged horizontally, each receiving cavity having a vertical second through hole in the middle, each U-shaped abutment member being hinged in one receiving cavity of the floating frame by a first pin; the floating frame located between the two receiving cavities has a vertical third through hole, the floating frame being hinged to the side of the second fixed plate facing the first fixed plate by a second pin.

[0008] Optionally, the floating frame is an I-shaped frame structure, including an upper plate, a lower plate, and a connecting plate connecting the upper plate and the lower plate, the connecting plate dividing the space between the upper plate and the lower plate into two accommodating cavities.

[0009] Optionally, the second fixing plate has a rectangular frame on the side facing the first fixing plate, and the top and bottom plates of the rectangular frame are provided with a fourth through hole, and the floating frame is hinged in the rectangular frame by a second pin.

[0010] Optionally, the two receiving slots in the same group are connected.

[0011] Optionally, the vise includes a fixed vise body and a movable vise body. Both the fixed vise body and the movable vise body are provided with jaw mounting holes. Both the fixed vise body and the movable vise body are connected to jaw plates by bolts. The first fixed plate is provided with a first mounting hole for mounting the first fixed plate to the fixed vise body by bolts. The second fixed plate is provided with a second mounting hole for mounting the second fixed plate to the movable vise body by bolts.

[0012] The beneficial effects of the technical solutions provided in this application include at least the following:

[0013] A multi-workpiece clamping device for milling inclined surfaces includes: a first fixed plate and a second fixed plate, a clamping plate, and a supporting assembly arranged opposite to each other. When it is necessary to machine the inclined surface on the workpiece, the clamping device is clamped in a vise. Because the clamping plate has a receiving groove for positioning the workpiece, the inclined surface to be machined is horizontal after the workpiece is placed on it, eliminating the need for alignment and facilitating the milling cutter to machine the inclined surface. The receiving groove can be calculated based on the position of the inclined surface of the workpiece and the angle between it and the side of the cuboid portion, ensuring that the inclined surface is ultimately horizontal. The clearance hole on the first fixed plate facilitates the insertion of the cylindrical portion of the workpiece, preventing deformation of the cylindrical portion under clamping force. The first fixed plate and the receiving groove provide precise positioning of the workpiece. A step is provided between the cylindrical portion and the cuboid portion; this step surface serves as the positioning surface of the workpiece in the clamping direction. When the second fixed plate approaches the first fixed plate, the supporting assembly mounted on the second fixed plate and the step clamp the workpiece. This allows for workpiece positioning and clamping, facilitating the milling of beveled surfaces. Furthermore, since the fixture plate can be equipped with multiple receiving slots, and the first fixed plate can have an equal number of clearance holes, this clamping device can process multiple workpieces simultaneously. The clamping device of this application has a simple structure and low manufacturing cost. It only requires a vise to process multiple workpieces, greatly improving efficiency and reducing the frequency of workpiece loading and unloading by the operator, thus alleviating the operator's labor intensity.

[0014] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 It is a three-dimensional view of the workpiece from one perspective;

[0017] Figure 2 It is a three-dimensional view of the workpiece from another perspective;

[0018] Figure 3 This is a schematic diagram of the combined state of the multi-workpiece clamping device for milling inclined surfaces provided in the embodiments of this application;

[0019] Figure 4 yes Figure 3 An exploded view of a multi-workpiece clamping device used for milling inclined surfaces;

[0020] Figure 5The multi-workpiece clamping device for milling inclined surfaces in this embodiment of the application is located at BB ( Figure 6 Cross-sectional view of )

[0021] Figure 6 The multi-workpiece clamping device for milling inclined surfaces in the embodiments of this application is... Figure 5 Cross-sectional view at point AA;

[0022] Figure 7 This is a front view of the clamping plate in the multi-workpiece clamping device for milling inclined surfaces in the embodiments of this application;

[0023] Figure 8 This is a three-dimensional schematic diagram of the U-shaped abutment in the multi-workpiece clamping device for milling inclined surfaces in the embodiments of this application;

[0024] Figure 9 This is a three-dimensional schematic diagram of the floating frame in the multi-workpiece clamping device for milling inclined surfaces in the embodiments of this application.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Workpiece; 11-Cuboid part; 12-Cylindrical part; 13-Beveled surface;

[0027] 2-First fixing plate; 21-Leaning hole; 22-First mounting hole;

[0028] 3-Second fixing plate; 31-Rectangular frame; 32-Fourth through hole; 33-Second mounting hole

[0029] 4-Clamping plate; 41-Receiving groove;

[0030] 5-Abutting component; 51-Abutting piece; 511-Abutting arm; 512-Connecting part; 513-First through hole; 52-First pin; 53-Floating frame; 531-Accommodating cavity; 532-Second through hole; 533-Third through hole; 534-Upper plate; 535-Lower plate; 536-Connecting plate; 54-Second pin. Detailed Implementation

[0031] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0032] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the relative positions of the corresponding components in the direction of gravity when they are in use, and "inner" and "outer" refer to their relative positions to the contours of the corresponding components themselves. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0033] refer to Figure 1 and Figure 2 As shown, the workpiece 1 includes a cuboid portion 11 and a cylindrical portion 12 disposed on one end face of the cuboid portion 11. The workpiece 1 needs to have a beveled surface 13 machined on one edge of the cuboid portion 11, which is parallel to the central axis of the cylindrical portion 12.

[0034] According to the embodiments of this application, refer to Figures 3 to 9 As shown, a multi-workpiece clamping device for milling inclined surfaces is provided, including: a first fixing plate 2 and a second fixing plate 3, a clamping plate 4 and a supporting assembly 5 arranged opposite to each other.

[0035] refer to Figure 3 and Figure 4 As shown, the first fixing plate 2 is provided with at least one clearance hole 21 that matches the cylindrical part 12. The clearance hole 21 is used to insert the cylindrical part 12 of the workpiece 1 to avoid deformation of the cylindrical part 12 under clamping force. The clamping plate 4 is fixedly connected to the side of the first fixing plate 2 facing the second fixing plate 3 and has at least one receiving groove 41 for positioning the cuboid part 11. The number of receiving grooves 41 is equal to the number of clearance holes 21. The first fixing plate 2 and the receiving groove 41 are used to position the workpiece so that the beveled surface 13 to be processed on the workpiece 1 is horizontal and does not need to be aligned. The side of the second fixing plate 3 facing the first fixing plate 2 is provided with a stop component 5. The stop component 5 is used to stop the workpiece 1 at the end facing the second fixing plate 3. When the first fixing plate 2 and the second fixing plate 3 approach each other, the workpiece 1 is fixed.

[0036] In the above embodiment, when it is necessary to process the beveled surface 13 on the workpiece 1, the clamping device can be clamped in the vise. Since the clamping plate 4 is provided with a receiving groove 41 for positioning the workpiece 1, this receiving groove 41 ensures that the beveled surface 13 to be processed is horizontal after the workpiece 1 is placed on it, thus facilitating the milling cutter of the milling machine to process the beveled surface 13. The receiving groove 41 can be calculated based on the position of the beveled surface 13 of the workpiece 1 and the angle between it and the side of the cuboid portion 11, so that the beveled surface 13 is ultimately in a horizontal state, and the clearance hole 21 on the first fixing plate 2 facilitates the insertion of the cylindrical portion 12 of the workpiece 1. The receiving groove 41, the first fixing plate 2, and the clearance hole 21 can accurately position the workpiece 1. A step is provided between the cylindrical portion 12 and the cuboid portion 11. This step surface serves as the positioning surface of the workpiece 1 in the clamping direction. When the second fixing plate 3 approaches the first fixing plate 2, the abutment component 5 mounted on the second fixing plate 3 and the step can clamp the workpiece 1. This allows for the positioning and clamping of workpiece 1, facilitating the milling of the beveled surface 13. Furthermore, since the fixture plate 4 can be equipped with multiple receiving slots 41, and the first fixing plate 2 can have an equal number of clearance holes 21 as the receiving slots 41, this clamping device can process multiple workpieces simultaneously. The clamping device of this application has a simple structure and low manufacturing cost. It only requires a vise to process multiple workpieces, greatly improving efficiency and reducing the frequency of workpiece loading and unloading by the operator, thus alleviating the operator's labor intensity.

[0037] According to the embodiments of this application, refer to Figure 7 As shown, the angle between the beveled surface 13 of the workpiece and one side of the cuboid portion 11 is set as ∠α. Correspondingly, each of the receiving grooves 41 also needs to be inclined, and the angle between the bottom surface of the receiving groove 41 and the horizontal plane is ∠α. When the angle between the bottom surface of the receiving groove 41 and the horizontal plane is ∠α, the angle between the beveled surface 13 of the workpiece 1 to be processed and the horizontal plane is 0°. This achieves the positioning of the workpiece 1, making it easier for the milling cutter to process the beveled surface 13 in the horizontal direction.

[0038] According to the embodiments of this application, refer to Figure 4 As shown, the number of receiving slots 41 can be two.

[0039] Because multiple processes are required to transform workpiece 1 into workpiece 2, the dimensions of each workpiece 1 are not perfectly uniform. When two workpieces 1 are clamped simultaneously, dimensional errors may occur, potentially resulting in inconsistent clamping tightness—some clamped more tightly, others more loosely. To prevent this, refer to... Figure 4 , Figure 6 and Figure 8As shown, the abutting assembly 5 may include a U-shaped abutting member 51. The U-shaped abutting member 51 includes two parallel abutting arms 511 and a connecting portion 512 connecting the two abutting arms 511. The connecting portion 512 is provided with a vertical first through hole 513. The U-shaped abutting member 51 is horizontally hinged to the side of the second fixing plate 3 facing the first fixing plate 2 by a first pin 52. With this design, the U-shaped abutting member 51 is equivalent to being movably mounted on the second fixing plate 3, that is, it can swing in the horizontal plane. When the second fixing plate 3 moves closer to the first fixing plate 2 and clamps the two workpieces 1, the U-shaped abutting member 51 can adaptively rotate around the first pin 52, thereby clamping the two workpieces 1 simultaneously.

[0040] According to the embodiments of this application, refer to Figure 4 As shown, in order to further improve clamping efficiency and enable the clamping device to clamp more workpieces 1, the number of the receiving slots 41 is four, and every two receiving slots 41 form a group of receiving slots 41; the two groups of receiving slots 41 are arranged in the horizontal direction.

[0041] refer to Figure 6 and Figure 8 As shown, the abutment assembly 5 includes two U-shaped abutment members 51 and a floating frame 53. The U-shaped abutment member 51 includes two parallel abutment arms 511 and a connecting part 512 connecting the two abutment arms 511. The connecting part 512 is provided with a vertical first through hole 513.

[0042] refer to Figure 9 As shown, the floating frame 53 has two accommodating cavities 531 arranged horizontally, each accommodating cavity 531 having a vertical second through hole 532 in the middle. Each U-shaped abutment 51 is hinged to one accommodating cavity 531 of the floating frame 53 by a first pin 52. The floating frame 53 located between the two accommodating cavities 531 has a vertical third through hole 533. The floating frame 53 is hinged to the side of the second fixed plate 3 facing the first fixed plate 2 by a second pin 54. In the above embodiment, the floating frame 53 is movably mounted on the second fixed plate 3 by the second pin 54, that is, the floating frame 53 can swing in the horizontal plane, so that the two U-shaped abutments 51 adapt to the horizontal plane, and each U-shaped abutment 51 can also rotate adapt to the horizontal plane. Therefore, four workpieces 1 can be clamped simultaneously by the floating frame 53 and the two U-shaped abutments 51, thereby improving processing efficiency.

[0043] It should be noted that this application requires two workpieces 1 to achieve one adaptive clamping operation, but only the U-shaped abutment 51 can be used. Therefore, the number of workpieces 1 should be a multiple of 2. If two adaptive clamping operations are required, the floating frame 53 needs to be used, and the number of workpieces 1 should be a multiple of 4. This application does not impose any restrictions on this.

[0044] According to the embodiments of this application, refer to Figure 9 As shown, the floating frame 53 is an I-shaped frame structure, including an upper plate 534, a lower plate 535, and a connecting plate 536 connecting the upper plate 534 and the lower plate 535. The connecting plate 536 divides the space between the upper plate 534 and the lower plate 535 into two accommodating cavities 531. In other embodiments, the floating frame 53 may also be in other forms, which are not limited in this application.

[0045] According to the embodiments of this application, refer to Figure 4 and Figure 6 As shown, the second fixing plate 3 has a rectangular frame 31 on the side facing the first fixing plate 2. The top and bottom plates of the rectangular frame 31 are provided with a fourth through hole 32. The floating frame 53 is hinged in the rectangular frame 31 by a second pin 54.

[0046] According to the embodiments of this application, refer to Figure 7 As shown, the two receiving slots 41 in the same group are connected. This design eliminates the need for partitions between the receiving slots 41 and also reduces the overall size of the clamping device.

[0047] The vise includes a fixed vise body and a movable vise body. Both the fixed vise body and the movable vise body are provided with jaw mounting holes. Both the fixed vise body and the movable vise body are connected to jaw plates by bolts. The first fixed plate 2 is provided with a first mounting hole 22, which is used to install the first fixed plate 2 to the fixed vise body by bolts. The second fixed plate 3 is provided with a second mounting hole 33, which is used to install the second fixed plate 3 to the movable vise body by bolts.

[0048] In this way, when using the vise, the bolts on the two jaw plates are removed, and the two jaw plates that come with the vise are taken off. The first fixing plate 2 and the second fixing plate 3 of this embodiment are used to form a new vise jaw. The first fixing plate 2 is fixed using the original bolt holes on the vise and the first mounting holes 22 on the first fixing plate 2, and the second fixing plate 3 is fixed using the original bolt holes on the vise and the second mounting holes 33 on the second fixing plate 3. In this way, the multi-workpiece clamping device for milling inclined surfaces is clamped on the vise, thereby realizing multiple uses with one clamping, reducing the number of clamping times and improving processing efficiency.

[0049] The implementation principle of this application is described below using a specific processing procedure:

[0050] Step 1: Remove the two jaw plates of the vise, fix the first fixing plate 2 using the original bolt holes on the vise and the first mounting holes 22 on the first fixing plate 2, fix the second fixing plate 3 using the original bolt holes on the vise and the second mounting holes 33 on the second fixing plate 3, and clamp the multi-workpiece clamping device for milling inclined surfaces onto the vise.

[0051] Step 2: Take four workpieces 1, insert the cuboid part of each workpiece 1 along the receiving groove 41, and insert the cylindrical part 12 into the relief hole 21 of the first fixing plate 2 until the cuboid part 11 contacts the first fixing plate 2. In this clamping position, the milling cutter can process a horizontal beveled surface 13.

[0052] Step 3: Shake the vise handle to move the jaws and bring the second fixing plate 3 closer to the first fixing plate 2 until the U-shaped abutting arm 511 on the second fixing plate 3 abuts against the four workpieces 1. Continue to rotate the vise handle to apply a certain pre-tightening force to the workpieces 1 to achieve clamping.

[0053] Step 4: Start the milling machine, move the tool and machine the beveled surface 13.

[0054] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0055] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0056] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A multi-workpiece clamping device for milling inclined surfaces, characterized in that, The workpiece (1) includes a cuboid portion (11) and a cylindrical portion (12) disposed on one end face of the cuboid portion (11). The workpiece (1) needs to have a beveled surface (13) machined on one edge of the cuboid portion (11) parallel to the central axis of the cylindrical portion (12). The clamping device includes: The first fixing plate (2) and the second fixing plate (3) are arranged opposite to each other. The first fixing plate (2) is provided with at least one clearance hole (21) that matches the cylindrical part (12). The clearance hole (21) is used to insert the cylindrical part (12) of the workpiece (1). The fixture plate (4) is fixedly connected to the side of the first fixing plate (2) facing the second fixing plate (3), and has at least one receiving groove (41) for positioning the cuboid part (11). The number of receiving grooves (41) is equal to the number of clearance holes (21). The first fixing plate (2) and the receiving groove (41) are used to position the workpiece (1) so that the beveled surface (13) to be processed on the workpiece (1) is horizontal. The second fixing plate (3) is provided with a stop component (5) on the side facing the first fixing plate (2), and the stop component (5) is used to abut against the end of the workpiece (1) facing the second fixing plate (3); When the first fixing plate (2) and the second fixing plate (3) approach each other, the workpiece (1) is fixed; The number of the receiving slots (41) is four, and every two receiving slots (41) form a group of receiving slots (41); the two groups of receiving slots (41) are arranged in the horizontal direction; The abutment assembly (5) includes two U-shaped abutment members (51) and a floating frame (53). The U-shaped abutment member (51) includes two parallel abutment arms (511) and a connecting part (512) connecting the two abutment arms (511). The connecting part (512) is provided with a vertical first through hole (513). The floating frame (53) has two accommodating cavities (531) arranged in a horizontal direction, and each accommodating cavity (531) has a vertical second through hole (532) in the middle. Each of the U-shaped abutment members (51) is hinged in one of the accommodating cavities (531) of the floating frame (53) by a first pin (52). The floating frame (53) located between the two accommodating cavities (531) has a vertical third through hole (533), and the floating frame (53) is hinged to the side of the second fixed plate (3) facing the first fixed plate (2) by a second pin (54).

2. The multi-workpiece clamping device for milling inclined surfaces according to claim 1, characterized in that, Each of the accommodating grooves (41) is inclined, and the angle between the bottom surface of the accommodating groove (41) and the horizontal plane is ∠α. When the angle between the bottom surface of the accommodating groove (41) and the horizontal plane is ∠α, the angle between the oblique cut surface (13) of the workpiece (1) to be processed and the horizontal plane is 0°.

3. The multi-workpiece clamping device for milling inclined surfaces according to claim 1, characterized in that, The floating frame (53) is an I-shaped frame structure, including an upper plate (534), a lower plate (535), and a connecting plate (536) connecting the upper plate (534) and the lower plate (535). The connecting plate (536) divides the space between the upper plate (534) and the lower plate (535) into two accommodating cavities (531).

4. The multi-workpiece clamping device for milling inclined surfaces according to claim 3, characterized in that, The second fixing plate (3) has a rectangular frame (31) on the side facing the first fixing plate (2). The top and bottom plates of the rectangular frame (31) are provided with a fourth through hole (32). The floating frame (53) is hinged in the rectangular frame (31) by a second pin (54).

5. The multi-workpiece clamping device for milling inclined surfaces according to claim 4, characterized in that, The two accommodating slots (41) in the same group are connected.

6. The multi-workpiece clamping device for milling inclined surfaces according to claim 1, characterized in that, The vise includes a fixed vise body and a movable vise body. Both the fixed vise body and the movable vise body are provided with jaw mounting holes. Both the fixed vise body and the movable vise body are connected to jaw plates by bolts. The first fixing plate (2) is provided with a first mounting hole (22), which is used to install the first fixing plate (2) onto the fixing clamp body by bolts; The second fixing plate (3) is provided with a second mounting hole (33), which is used to install the second fixing plate (3) onto the movable clamp body by bolts.

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