Workpiece fixing tool of milling machine

Abstract

The utility model relates to the technical field of connecting rod processing, and discloses a workpiece fixing tool of a milling machine, which comprises a base, the two sliding blocks are slidably connected to the top face of the base, clamping structures are arranged at the tops of the sliding blocks and comprise clamping plates, abutting grooves and contact blocks, the clamping plates are movably connected with the sliding blocks through adjusting assemblies, the contact blocks are detachably connected with the clamping plates, the abutting grooves are formed in the wall faces of the clamping plates, and the clamping plates respectively form a concave face and a convex face through the abutting grooves and the contact blocks; by arranging the detachable contact block and the contact groove, the two opposite side wall faces of the clamping plate form the concave face and the convex face used for clamping correspondingly, for milling machining of the connecting rod, the protruding contact block can abut against the concave face of a shaft hole of the connecting rod, the wall face where the contact groove is located can clamp the arc-shaped position of the connecting rod, and the clamping mode is more flexible; milling is more facilitated, and the clamping position can be flexibly adjusted to avoid the position needing to be milled.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod processing, in particular to a workpiece fixing tool for a milling machine. Background Art

[0002] The prior art discloses a CNC milling machine fixture (CN202110520707.5), which belongs to the technical field of CNC milling machine equipment, including a milling machine, a slag collecting plate and an anti-slip pad. The slag collecting plate runs through the lower end of the front side of the milling machine, and the anti-slip pad is glued to the upper surface of the milling machine. Slide grooves are provided on the left and right sides of the upper surface of the milling machine. Motors are provided on the left and right sides of the milling machine. The output ends of the motors on the left and right sides respectively pass through the left and right side walls of the milling machine and are rotatably connected to screw rods, and the surfaces of the screw rods on the left and right sides are sleeved with threaded sleeves.

[0003] In the prior art, the workpiece is clamped by pushing two sliders close to each other through a screw rod, and a clamping plate is installed on the top of the slider. The shape of the clamping plate is fixed and cannot be replaced. For the milling of automobile connecting rods, the connecting rods have a variety of different structures such as flat surfaces, convex surfaces and concave surfaces. A clamping plate with a fixed shape, such as a rectangular plate, may have a better clamping and fixing effect on the flat surface of the connecting rod, but has a poor clamping and fixing effect on the concave surface and the outer circumference of the axial hole of the connecting rod. Repeatedly replacing different clamping plates will complicate the clamping of a single connecting rod, and there is a certain room for optimization.

[0004] For this purpose, we propose a workpiece fixing fixture for a milling machine. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a workpiece fixing tool for a milling machine.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a workpiece fixing tool for a milling machine, comprising a base; two sliders slidably connected to the top surface of the base, a clamping structure is provided on the top of the slider, the clamping structure comprises a clamping plate, a contact groove and a contact block, the clamping plate is movably connected to the slider through an adjusting component, the contact block is detachably connected to the clamping plate, a contact groove is provided on the wall surface of the clamping plate, the clamping plate forms a concave surface and a convex surface respectively through the contact groove and the contact block, the concave surface and the convex surface of the clamping plate can interchange positions and lock the position through the adjusting component.

[0007] As a preferred embodiment of the present invention, the clamping plate forms a rectangular block structure, the abutment groove forms an arc groove, and the contact block is provided with an opposite side of the abutment groove.

[0008] As a preferred embodiment of the utility model, the contact block forms a semi-cylindrical structure, an integrally formed rectangular protrusion is provided at the cross section of the contact block, a slot adapted to the protrusion is provided on the side wall of the clamping plate, and the protrusion is plugged into the slot.

[0009] As a preferred embodiment of the utility model, the adjustment assembly includes a rotating body, a thrust groove and a positioning rod. The rotating body is plugged into the slider and fixedly connected to the clamp. A plurality of thrust grooves are provided on the wall surface of the rotating body. The positioning rod is elastically connected to the slider and clamped in the thrust groove.

[0010] As a preferred embodiment of the utility model, the adjustment component also includes a top groove and a side groove. The top groove is opened on the top surface of the slider, and the side groove is opened on the side wall of the slider. The side groove is connected to the top groove. The rotating body is inserted into the top groove and can rotate in the top groove, and the positioning rod slides in the side groove.

[0011] As a preferred embodiment of the present invention, the rotating body forms a cylindrical structure, the thrust groove is provided on the circumferential surface of the rotating body, and the depth of the thrust groove is less than the height of the rotating body.

[0012] As a preferred embodiment of the present invention, the positioning rod forms an L-shaped rod structure, and the positioning rod and the thrust groove have the same width.

[0013] As a preferred embodiment of the utility model, the adjustment assembly also includes a sealing cover, which is locked with the slider by bolts and blocks the side groove. A through hole is opened on the wall of the sealing cover, and the positioning rod extends into the side groove through the through hole. An elastic member is provided between the sealing cover and the positioning rod, and the elastic member includes a spring but is not limited to a spring.

[0014] Beneficial Effects

[0015] The utility model provides a workpiece fixing device for a milling machine, which has the following beneficial effects:

[0016] 1. A workpiece fixing fixture for a milling machine is provided with a detachable contact block and a resistance groove, so that the two side walls of the clamping plate respectively form a concave surface and a convex surface for clamping. For the milling processing of the connecting rod, the raised contact block can resist the concave surface of the axial hole of the connecting rod, and the wall surface where the resistance groove is located can realize the clamping of the arc position of the connecting rod. It has a more flexible clamping method, is more conducive to milling, can flexibly adjust the clamping position to avoid the position that needs to be milled, has stronger adaptability, and has a wider range of applications.

[0017] 2. This kind of workpiece fixing fixture for a milling machine is configured with a top groove, and the rotating body at the bottom of the slider is inserted into the rotating body. Since the cylindrical rotating body can rotate in the top groove, the positions of the walls on both sides of the clamping plate can be interchanged. The positioning rod is pulled, the positioning rod is disengaged from the thrust groove and slides in the side groove. The positioning rod squeezes the elastic part, and the elastic part is a spring. After the clamping plate is rotated to adjust the position, the positioning rod is released, the positioning rod is reset and stuck in another thrust groove to lock the rotating body, and the concave and convex positions of the clamping plate are fixed. It has the elasticity that is easy to operate, simple to switch, and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0019] Figure 2 This is the second overall stereogram of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation of the rotating body and the slider of the utility model;

[0021] Figure 4 This is a three-dimensional diagram of the slider of the utility model;

[0022] Figure 5 It is an overall stereogram of the adjustment component of the utility model.

[0023] Legend: 10, base; 11, slider; 20, clamping plate; 21, abutment groove; 22, contact block; 30, rotating body; 31, thrust groove; 32, positioning rod; 33, top groove; 34, side groove; 35, sealing cover. DETAILED DESCRIPTION

[0024] A workpiece fixing fixture for a milling machine, such as Figure 1 and Figure 2 As shown, it includes a base 10; two sliders 11 slidably connected to the top surface of the base 10, specifically, the top surface of the base 10 is provided with a slide groove, and two sliders 11 are symmetrically arranged in the slide groove, and each slider 11 is provided with the same clamping structure and adjustment component, and the wall surfaces of the two sliders 11 are provided with threaded holes, and the wall surface of the base 10 is rotatably connected with a screw rod, which is a bidirectional screw rod, and the screw rod is threadedly connected to the two sliders 11, and the two sliders 11 are driven by the screw rod to move closer or farther from each other to achieve clamping or release, and the wall surface of the base 10 can be installed with a motor-driven screw rod or a manually rotated screw rod, which will not be elaborated here.

[0025] like Figure 2 , Figure 3 and Figure 4As shown, a clamping structure is provided on the top of the slider 11, and the clamping structure includes a clamping plate 20, a resistance groove 21 and a contact block 22. The clamping plate 20 is movably connected to the slider 11 through an adjustment component, and the contact block 22 is detachably connected to the clamping plate 20. The wall surface of the clamping plate 20 is provided with a resistance groove 21, and the clamping plate 20 forms a concave surface and a convex surface respectively through the resistance groove 21 and the contact block 22. The concave surface and the convex surface of the clamping plate 20 can interchange positions and lock the position through the adjustment component. The clamping plate 20 forms a rectangular block structure, the resistance groove 21 forms an arc groove, and the contact block 22 is provided with an opposite surface of the resistance groove 21, and the contact block 22 forms a semi-cylindrical structure. An integrally formed rectangular protrusion is provided at the cross section of the contact block 22, and a slot matching the protrusion is opened on the side wall of the clamping plate 20, and the protrusion is plugged into the slot. In this scheme, by providing a detachable contact block 22 and abutment groove 21, the opposite side walls of the clamping plate 20 respectively form a concave surface and a convex surface for clamping. For the milling processing of the connecting rod, the raised contact block 22 can abut against the concave surface of the axial hole of the connecting rod, and the wall surface where the abutment groove 21 is located can realize the clamping of the arc position of the connecting rod, which has a more flexible clamping method, is more conducive to milling, and can flexibly adjust the clamping position to avoid the position that needs to be milled.

[0026] like Figure 4 and Figure 5As shown, the adjustment component includes a rotating body 30, a thrust groove 31, and a positioning rod 32. The rotating body 30 is plugged into the slider 11 and fixedly connected to the clamping plate 20. The wall surface of the rotating body 30 is provided with a plurality of thrust grooves 31. The positioning rod 32 is elastically connected to the slider 11 and is clamped in the thrust groove 31. The adjustment component also includes a top groove 33 and a side groove 34. The top surface of the slider 11 is provided with a top groove 33, and the side wall of the slider 11 is provided with a side groove 34. The side groove 34 is communicated with the top groove 33. The rotating body 30 is inserted into the top groove 33 and can rotate in the top groove 33. The positioning rod 32 slides in the side groove 34. The rotating body 30 forms a cylindrical structure. The thrust groove 31 is provided on the circumferential surface of the rotating body 30. The depth of the thrust groove 31 is less than the height of the rotating body 30. The positioning rod 32 forms an L-shaped rod structure. The positioning rod 32 is the same width as the thrust groove 31. The adjustment component also includes a sealing cover 35. The sealing cover 35 is locked with the slider 11 by bolts and the side The groove 34 is blocked, and a through hole is opened on the wall surface of the sealing cover 35. The positioning rod 32 passes through the through hole and extends into the side groove 34. An elastic member is provided between the sealing cover 35 and the positioning rod 32. The elastic member includes a spring but is not limited to a spring. As a supplement to the above scheme, a top groove 33 is set, and the rotating body 30 at the bottom of the slider 11 is inserted into the rotating body 30. Since the cylindrical rotating body 30 can rotate in the top groove 33, the position of the two side walls of the clamping plate 20 can be interchanged. Pull the positioning rod 32, the positioning rod 32 disengages from the thrust groove 31 and slides in the side groove 34. The positioning rod 32 squeezes the elastic member. The elastic member takes a spring as an example. After the clamping plate 20 is rotated to adjust the position, the positioning rod 32 is released, the positioning rod 32 is reset and stuck in another thrust groove 31, thereby locking the rotating body 30, and then the concave and convex positions of the clamping plate 20 are fixed. It has the elasticity that is easy to operate, simple to switch, and easy to use.

[0027] The working principle of the utility model is as follows: the rotating body 30 at the bottom of the slider 11 is inserted into the rotating body 30. Since the cylindrical rotating body 30 can rotate in the top groove 33, the positions of the two side walls of the clamping plate 20 are interchanged, and the positioning rod 32 is pulled, and the positioning rod 32 disengages from the thrust groove 31 and slides in the side groove 34, and the positioning rod 32 squeezes the elastic member, and the elastic member is a spring as an example. After the clamping plate 20 is rotated to adjust the position, the positioning rod 32 is released, and the positioning rod 32 is reset and stuck in the other thrust groove 31 to achieve the locking of the rotating body 30. By setting a detachable contact block 22 and abutting groove 21, the two side walls of the clamping plate 20 are respectively formed with a concave surface and a convex surface for clamping. For the milling of the connecting rod, the raised contact block 22 can abut against the concave surface of the axial hole of the connecting rod, and the wall surface where the abutting groove 21 is located can clamp the arc position of the connecting rod to meet the clamping operation of the concave and convex surfaces during the connecting rod processing.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A workpiece fixing fixture for a milling machine, comprising a base (10); two slide blocks (11) slidably connected to the top surface of the base (10), characterized in that: A clamping structure is provided on the top of the slider (11), and the clamping structure comprises a clamping plate (20), a contact groove (21) and a contact block (22). The clamping plate (20) is movably connected to the slider (11) through an adjustment component, and the contact block (22) is detachably connected to the clamping plate (20). The wall surface of the clamping plate (20) is provided with a contact groove (21), and the clamping plate (20) forms a concave surface and a convex surface respectively through the contact groove (21) and the contact block (22). The concave surface and the convex surface of the clamping plate (20) can be interchanged and locked in position through the adjustment component.

2. The workpiece fixing fixture for a milling machine according to claim 1, characterized in that: The clamping plate (20) forms a rectangular block structure, the abutment groove (21) forms an arc-shaped groove, and the contact block (22) is provided on the opposite side of the abutment groove (21).

3. The workpiece fixing fixture for a milling machine according to claim 1, characterized in that: The contact block (22) forms a semi-cylindrical structure, and an integrally formed rectangular protrusion is provided at the cross section of the contact block (22). A slot adapted to the protrusion is provided on the side wall surface of the clamping plate (20), and the protrusion is plugged into the slot.

4. The workpiece fixing fixture for a milling machine according to claim 1, characterized in that: The adjustment assembly comprises a rotating body (30), a thrust groove (31) and a positioning rod (32); the rotating body (30) is plugged into the slider (11) and fixedly connected to the clamping plate (20); a plurality of thrust grooves (31) are provided on the wall surface of the rotating body (30); and the positioning rod (32) is elastically connected to the slider (11) and clamped to the thrust groove (31).

5. The workpiece fixing fixture for a milling machine according to claim 4, characterized in that: The adjustment assembly also includes a top groove (33) and a side groove (34); the top surface of the slider (11) is provided with a top groove (33); the side wall of the slider (11) is provided with a side groove (34); the side groove (34) is connected to the top groove (33); the rotating body (30) is inserted into the top groove (33) and can rotate in the top groove (33); the positioning rod (32) slides in the side groove (34).

6. The workpiece fixing fixture for a milling machine according to claim 4, characterized in that: The rotating body (30) forms a cylindrical structure, and the thrust groove (31) is opened on the circumferential surface of the rotating body (30), and the depth of the thrust groove (31) is smaller than the height of the rotating body (30).

7. The workpiece fixing fixture for a milling machine according to claim 4, characterized in that: The positioning rod (32) forms an L-shaped rod body structure, and the positioning rod (32) and the thrust groove (31) are of equal width.

8. The workpiece fixing fixture for a milling machine according to claim 4, characterized in that: The adjustment assembly further comprises a sealing cover (35), wherein the sealing cover (35) is locked with the slider (11) by means of bolts and blocks the side groove (34), a through hole is provided on the wall surface of the sealing cover (35), the positioning rod (32) passes through the through hole and extends into the side groove (34), and an elastic member is provided between the sealing cover (35) and the positioning rod (32).

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