Workpiece clamping mechanism for turn-milling machining

Abstract

The utility model discloses a workpiece clamping mechanism for turn-milling machining. The workpiece clamping mechanism comprises a base and a clamping block. A first gear is rotatably mounted in the base, a connecting rod is fixedly connected to the axis of the first gear, and a threaded hole is formed in the end, away from the first gear, of the connecting rod; a plurality of notches are formed in the base, and the clamping blocks are installed in the notches in a hinged mode. A top block is rotationally installed in the base, the bottom of the top block is fixedly connected with a threaded rod in threaded fit with the threaded hole, and the top block can drive the clamping block to rotate. According to the scheme, a user can conveniently fix and unfix a workpiece, the workpiece can be jacked up by continuously rotating the bolt, and the workpiece can be conveniently taken down.

Description

Technical Field

[0001] The utility model relates to the technical field of turning and milling processing, in particular to a workpiece clamping mechanism for turning and milling processing. Background Art

[0002] Turning and milling is a composite machining process. It combines the characteristics of turning and milling, and completes turning and milling operations on one machine tool at the same time. Turning and milling can process parts of various complex shapes, improve machining efficiency and precision, and is widely used in the field of mechanical manufacturing.

[0003] When face milling a workpiece, the workpiece is placed in a fixture and the cross section of the workpiece is processed by a milling cutter. After processing, the worker needs to take the workpiece out. When taking out the workpiece with the existing fixture, there is less space reserved on the outside of the workpiece after processing, and the worker has fewer parts to grasp, so the operation of taking out the workpiece is more difficult. Utility Model Content

[0004] The main purpose of the utility model is to provide a workpiece clamping mechanism for turning and milling processing to improve the problems in the related technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a workpiece clamping mechanism for turning and milling, comprising a base and a clamping block;

[0006] A first gear is rotatably mounted in the base, a connecting rod is fixedly connected to the axis of the first gear, and a threaded hole is formed at one end of the connecting rod away from the first gear;

[0007] The base is provided with a plurality of notches, and the clamping blocks are hingedly installed in the notches;

[0008] A top block is rotatably mounted in the base, a threaded rod threadably matched with the threaded hole is fixedly connected to the bottom of the top block, and the top block can drive the clamping block to rotate.

[0009] In one embodiment of the utility model, a boss is fixedly connected to the side wall of the connecting rod, a thrust ball bearing is rotatably mounted on the boss, a spring is fixedly connected to the upper part of the thrust ball bearing, and one end of the spring away from the boss abuts against the bottom of the top block.

[0010] In an embodiment of the utility model, a clamping slot is provided on the side of the top block, and the top block is transmission-connected to the clamping block via the clamping slot.

[0011] In one embodiment of the utility model, the clamp block is provided with a clamping portion and a transmission portion, the transmission portion is slidably mounted in the clamping slot, and the clamping portion can contact the workpiece;

[0012] The top block rises, driving the transmission part to rotate upward with the hinge as the axis, and the clamping part is separated from the workpiece;

[0013] The top block descends, driving the transmission part to rotate downward with the hinge as the axis, and the clamping part clamps the workpiece.

[0014] In an embodiment of the utility model, a countersunk threaded hole is opened on the base, a bolt is installed in the inner thread of the countersunk threaded hole, and one end of the bolt is fixedly connected to a second gear meshing with the first gear.

[0015] In an embodiment of the present invention, a rubber pad capable of contacting the bottom of the workpiece is provided on the upper surface of the top block.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: through the workpiece clamping mechanism for turning and milling machining designed as above, when in use, by rotating the bolt, the second gear is driven to rotate, thereby driving the first gear to rotate, so that the connecting rod and the threaded rod are tightened, so that the position of the top block is lowered. At this time, the top block pulls the transmission part to rotate downward with the hinge as the axis, so that the clamping part contacts the workpiece; when the workpiece needs to be removed, the bolt is rotated in the opposite direction to make the threaded rod withdraw from the threaded hole, so that the position of the top block is raised, thereby driving the transmission part to rotate upward with the hinge as the axis, so that the clamping part is separated from the workpiece, thereby releasing the fixation of the workpiece, making it convenient for users to fix and release the workpiece, and continuing to rotate the bolt can lift the workpiece, which is convenient for removing the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a workpiece clamping mechanism for turning and milling provided according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the base of the workpiece clamping mechanism for turning and milling provided according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the decomposition of the threaded rod and the connecting rod of the workpiece clamping mechanism for turning and milling provided according to an embodiment of the utility model.

[0020] In the figure: 1. base; 2. clamping block; 3. first gear; 4. connecting rod; 5. threaded hole; 6. notch; 7. top block; 8. threaded rod; 9. boss; 10. thrust ball bearing; 11. spring; 12. slot; 13. clamping part; 14. transmission part; 15. bolt; 16. rubber pad; 17. countersunk threaded hole; 18. second gear. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0025] In addition, the term "plurality" shall mean two or more.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] Example 1

[0028] See also Figure 1-Figure 3The utility model provides a workpiece clamping mechanism for turning and milling, comprising a base 1 and a clamping block 2, wherein the base 1 can be detachably mounted on a turning and milling machine tool;

[0029] A first gear 3 is rotatably mounted in the base 1, a connecting rod 4 is fixedly connected to the axis of the first gear 3, and a threaded hole 5 is formed at one end of the connecting rod 4 away from the first gear 3;

[0030] The base 1 is provided with a plurality of notches 6, and the clamping block 2 is hingedly installed in the notches 6;

[0031] A top block 7 is rotatably mounted in the base 1, and a threaded rod 8 threadedly matched with the threaded hole 5 is fixedly connected to the bottom of the top block 7, so that the top block 7 can drive the clamping block 2 to rotate;

[0032] A slot 12 is provided on the side of the top block 7, and the top block 7 is transmission-connected to the clamping block 2 via the slot 12;

[0033] A countersunk threaded hole 17 is formed on the base 1, a bolt 15 is installed in the internal thread of the countersunk threaded hole 17, and one end of the bolt 15 is fixedly connected to a second gear 18 meshing with the first gear 3;

[0034] The clamp block 2 is provided with a clamping portion 13 and a transmission portion 14, the transmission portion 14 is slidably installed in the clamping slot 12, and the clamping portion 13 can contact with the workpiece;

[0035] The top block 7 rises, driving the transmission part 14 to rotate upward with the hinge as the axis, and the clamping part 13 is separated from the workpiece;

[0036] The top block 7 descends, driving the transmission part 14 to rotate downward with the hinge as the axis, and the clamping part 13 clamps the workpiece.

[0037] It should be noted that there are no less than three notches 6, and the number of the clamping blocks 2 is the same as the number of the notches 6;

[0038] The clamping portion 13 and the transmission portion 14 are provided as an integral structure with the clamping block 2 .

[0039] By adopting the above scheme, the second gear 18 is driven to rotate by rotating the bolt 15, thereby driving the first gear 3 to rotate, so that the connecting rod 4 and the threaded rod 8 are tightened, so that the position of the top block 7 is lowered. At this time, the top block 7 pulls the transmission part 14 to rotate downward with the hinge as the axis, so that the clamping part 13 contacts the workpiece;

[0040] When the workpiece needs to be removed, the bolt 15 is rotated in the reverse direction to allow the threaded rod 8 to be withdrawn from the threaded hole 5, so that the position of the top block 7 rises, thereby driving the transmission part 14 to rotate upward with the hinge as the axis, so that the clamping part 13 is separated from the workpiece, thereby releasing the fixation of the workpiece, making it convenient for the user to fix and release the workpiece, and continuing to rotate the bolt 15 can lift the workpiece, making it convenient to remove the workpiece.

[0041] In this embodiment, a boss 9 is fixedly connected to the side wall of the connecting rod 4, a thrust ball bearing 10 is rotatably mounted on the boss 9, a spring 11 is fixedly connected to the upper part of the thrust ball bearing 10, and one end of the spring 11 away from the boss 9 abuts against the bottom of the top block 7.

[0042] By adopting the above solution, through the use of the spring 11, when the fixation of the workpiece is released, the reaction force of the spring 11 can provide an upward thrust to the top block 7, so as to facilitate the withdrawal of the threaded rod 8.

[0043] In this embodiment, a rubber pad 16 capable of contacting the bottom of the workpiece is provided on the upper surface of the top block 7 .

[0044] It should be noted that the rubber pad 16 is fixed to the upper surface of the top block 7 by bonding.

[0045] By adopting the above solution and using the rubber pad 16, direct sliding friction between the top block 7 and the workpiece can be avoided when the workpiece is lifted up, which can effectively prevent scratches from occurring on the bottom of the workpiece.

[0046] Specifically, the working principle of the workpiece clamping mechanism for turning and milling is as follows: when in use, the workpiece is placed on the base 1, and the second gear 18 is driven to rotate by rotating the bolt 15, thereby driving the first gear 3 to rotate, so that the connecting rod 4 and the threaded rod 8 are tightened, so that the position of the top block 7 is lowered. At this time, the top block 7 pulls the transmission part 14 to rotate downward with the hinge as the axis, so that the clamping part 13 contacts the workpiece;

[0047] When the workpiece needs to be removed, the bolt 15 is rotated in the reverse direction to allow the threaded rod 8 to be withdrawn from the threaded hole 5, so that the position of the top block 7 rises, thereby driving the transmission part 14 to rotate upward with the hinge as the axis, so that the clamping part 13 is separated from the workpiece, thereby releasing the fixation of the workpiece, making it convenient for the user to fix and release the workpiece, and continuing to rotate the bolt 15 can lift the workpiece, making it convenient to remove the workpiece.

[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A workpiece clamping mechanism for turning and milling, characterized in that: It comprises a base (1) and a clamping block (2); A first gear (3) is rotatably mounted in the base (1); a connecting rod (4) is fixedly connected to the axis of the first gear (3); and a threaded hole (5) is formed at one end of the connecting rod (4) away from the first gear (3); The base (1) is provided with a plurality of notches (6), and the clamping block (2) is hingedly installed in the notches (6); A top block (7) is rotatably mounted in the base (1), and a threaded rod (8) threadably matched with the threaded hole (5) is fixedly connected to the bottom of the top block (7), so that the top block (7) can drive the clamping block (2) to rotate.

2. A workpiece clamping mechanism for turning and milling processing as described in claim 1, wherein a boss (9) is fixedly connected to the side wall of the connecting rod (4), a thrust ball bearing (10) is rotatably mounted on the boss (9), a spring (11) is fixedly connected to the upper part of the thrust ball bearing (10), and one end of the spring (11) away from the boss (9) is in conflict with the bottom of the top block (7).

3. A workpiece clamping mechanism for turning and milling processing as described in claim 1, wherein a slot (12) is provided on the side of the top block (7), and the top block (7) is transmission-connected to the clamping block (2) via the slot (12).

4. A workpiece clamping mechanism for turning and milling according to claim 3, wherein the clamping block (2) is provided with a clamping portion (13) and a transmission portion (14), the transmission portion (14) is slidably installed in the clamping groove (12), and the clamping portion (13) can contact with the workpiece; The top block (7) rises, driving the transmission part (14) to rotate upward with the hinge as the axis, and the clamping part (13) is separated from the workpiece; The top block (7) descends, driving the transmission part (14) to rotate downward with the hinge as the axis, and the clamping part (13) clamps the workpiece.

5. A workpiece clamping mechanism for turning and milling processing as described in claim 1, wherein a countersunk threaded hole (17) is opened on the base (1), a bolt (15) is installed with an internal thread of the countersunk threaded hole (17), and one end of the bolt (15) is fixedly connected to a second gear (18) meshing with the first gear (3).

6. A workpiece clamping mechanism for turning and milling as claimed in claim 1, wherein the upper surface of the top block (7) is provided with a rubber pad (16) capable of contacting the bottom of the workpiece.

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