Connecting shaft turning clamp with space included angle eccentricity

Abstract

The utility model discloses a turning clamp for a connecting shaft with a space included angle eccentricity, which relates to the technical field of turning clamp tools and comprises a tool base, the tool base is used for being fixedly mounted on a lathe, a clamping support is fixedly arranged at the upper end of the tool base, and a shaft mounting hole for placing a connecting shaft body is formed in the clamping support. A side clamping mounting groove communicated with the shaft mounting hole is formed in the clamping support, and a side clamping mechanism used for clamping the side end of the connecting shaft body is mounted at the side clamping mounting groove; a base groove is formed in the center of the bottom of the tool base, a jacking and pressing mounting groove communicating with the shaft mounting hole is formed in the bottom of the base groove, and a jacking and pressing mechanism used for jacking and supporting the connecting shaft body is mounted at the jacking and pressing mounting groove; by arranging the side clamping mechanism and the jacking mechanism, axial and radial limiting clamping is achieved when the connecting shaft is turned, installation is convenient, the turning efficiency of the connecting shaft is improved, clamping stability is good, and the turning precision of the connecting shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turning fixtures and tools, in particular to a connecting shaft vehicle fixture with an eccentric spatial angle. Background Art

[0002] Eccentric shafts are increasingly used in the fields of power tools and robots. Ordinary two-dimensional eccentric shafts can be easily turned on CNC lathes by using turning tooling with the eccentric angle required by the machining center milling diagram. Eccentric shafts with spatial angles are currently mostly processed by five-axis turning centers.

[0003] The spatial angle eccentric shaft can be decomposed into two eccentricities: the first one is based on the outer diameter and end face positioning, and it is difficult to achieve one eccentric turning using a 13.5°±0.5° eccentric turning tool. If you want to achieve the second 13.5°±0.5° and 17°±2° spatial eccentric processing on an ordinary lathe, it is impossible to meet product requirements without a stable and reliable special turning tool. Utility Model Content

[0004] The utility model aims to provide a connecting shaft turning fixture with eccentric space angle, so as to solve the technical problem that special turning tooling cannot meet the requirements of turning and clamping the connecting shaft with eccentric space angle.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A connecting shaft vehicle clamp with an eccentric spatial angle comprises a tooling base, the tooling base is used to be fixedly mounted on a lathe, a clamping support is fixedly arranged on the upper end of the tooling base, a shaft mounting hole for placing a connecting shaft body is arranged on the clamping support, a side clamping mounting groove connected to the shaft mounting hole is arranged on the clamping support, and a side clamping mechanism for clamping the side end of the connecting shaft body is installed at the side clamping mounting groove;

[0007] A base groove is arranged at the center of the bottom of the tooling base, a top-pressing installation groove connected with the shaft installation hole is arranged at the bottom of the base groove, and a top-pressing mechanism for top-pressing and supporting the connecting shaft body is installed at the top-pressing installation groove.

[0008] As a further solution of the utility model: the side clamping mechanism includes a side clamping vertical plate, which is fixedly mounted on the clamping support by side clamping bolts, and the side clamping vertical plate is threadedly connected with an adjusting screw for pressing the connecting shaft body, and the end of the adjusting screw away from the connecting shaft body is fixedly connected with a driving screw handle.

[0009] As a further solution of the utility model: a side clamping plate is fixedly connected to the side clamping vertical plate, the side clamping plate and the side clamping vertical plate form an L-shaped structure, and the side clamping plate is fixedly installed on the clamping support by side clamping bolts.

[0010] As a further solution of the utility model: the side of the adjusting screw rod close to the connecting shaft body is rotatably connected with an arc-shaped side clamp seat, and the arc-shaped side clamp seat is provided with an arc-shaped groove matching the outer periphery of the connecting shaft body.

[0011] As a further solution of the utility model: a limiting groove is arranged on the arc-shaped side clamp seat, a penetrating connecting groove is arranged on the side wall of the limiting groove, a limiting block is rotatably connected in the limiting groove, a connecting rod is fixedly arranged on the limiting block, and the connecting rod passes through the connecting groove and is fixedly connected to the adjusting screw.

[0012] As a further solution of the utility model: the pressing mechanism includes a pressing base, the pressing base is fixedly installed in the pressing installation groove by pressing bolts, and a pressing support block matching the end of the connecting shaft body is fixedly provided on the pressing base.

[0013] As a further solution of the utility model: a top pressure limit block is fixedly arranged on the top pressure support block, and the top pressure limit block cooperates with the shaft groove arranged at the end of the connecting shaft body.

[0014] Beneficial effects of the utility model:

[0015] (1) By setting up a side clamping mechanism and a top pressing mechanism, the axial and radial limit clamping of the connecting shaft is achieved during turning, ensuring that the connecting shaft body remains stable during turning. This not only facilitates installation and improves the turning efficiency of the connecting shaft, but also improves the turning accuracy of the connecting shaft with good clamping stability.

[0016] (2) The axial position of the connecting shaft body is limited by the cooperation of the top pressure limit block and the shaft groove to prevent the axial rotation of the connecting shaft body during turning, thereby ensuring that the connecting shaft body remains stable during turning.

[0017] (3) The arc-shaped side clamp seat is provided with an arc-shaped groove matching the outer circumference of the connecting shaft body. The arc-shaped side clamp seat is used to clamp the outer circumference of the connecting shaft body, which can not only avoid the surface of the workpiece from being crushed, but also provide reliable clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2It is a schematic diagram of the axonometric structure of the utility model as a whole;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the assembly of the side clamping mechanism and the top pressing mechanism with the connecting shaft body of the utility model;

[0022] Figure 4 It is a schematic diagram of the assembly axonometric structure of the side clamping mechanism, the top pressing mechanism and the connecting shaft body of the utility model.

[0023] In the figure: 1. tooling base; 101. tooling hole; 102. base groove; 103. top pressure installation groove; 2. clamping support; 21. shaft installation hole; 22. side clamp installation groove; 3. side clamp mechanism; 31. side clamp plate; 32. side clamp vertical plate; 33. side clamp bolt; 34. adjusting screw; 35. driving screw handle; 36. connecting rod; 37. limiting block; 38. arc-shaped side clamp seat; 381. limiting groove; 382. connecting groove; 4. top pressure mechanism; 41. top pressure base; 42. countersunk screw hole; 43. top pressure bolt; 44. top pressure support block; 45. top pressure limiting block; 5. connecting shaft body; 51. shaft groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 As shown, the utility model is a connecting shaft vehicle clamp with eccentric spatial angle, comprising a tooling base 1, the tooling base 1 is used to be fixedly installed on a lathe, a clamping support 2 is fixedly arranged on the upper end of the tooling base 1, a shaft mounting hole 21 for placing a connecting shaft body 5 is arranged on the clamping support 2, a side clamping installation groove 22 connected with the shaft mounting hole 21 is arranged on the clamping support 2, and a side clamping mechanism 3 for clamping the side end of the connecting shaft body 5 is installed at the side clamping installation groove 22;

[0026] A base groove 102 is provided at the center of the bottom of the tooling base 1, and a top pressing installation groove 103 connected with the shaft mounting hole 21 is provided at the bottom of the base groove 102. A top pressing mechanism 4 for top pressing and supporting the connecting shaft body 5 is installed at the top pressing installation groove 103. The setting of the base groove 102 is used to ensure that the top pressing mechanism 4 has sufficient installation space to prevent the top pressing mechanism 4 from protruding from the lower end surface of the tooling base 1, which makes it impossible for the tooling base 1 to be installed smoothly. The setting of the base groove 102 facilitates the installation of the top pressing mechanism 4.

[0027] A plurality of tooling holes 101 distributed in a circular array are arranged near the edge of the tooling base 1 . The tooling holes 101 are used to fix the tooling base 1 on a lathe, thereby facilitating turning of the connecting shaft body 5 .

[0028] The side clamping mechanism 3 includes a side clamping vertical plate 32, which is fixedly mounted on the clamping support 2 by a side clamping bolt 33. An adjusting screw 34 for pressing the connecting shaft body 5 is threadedly connected to the side clamping vertical plate 32, and a driving screw handle 35 is fixedly connected to one end of the adjusting screw 34 away from the connecting shaft body 5.

[0029] The side clamping plate 31 is fixedly connected to the side clamping vertical plate 32, and the side clamping plate 31 and the side clamping vertical plate 32 form an L-shaped structure. The side clamping plate 31 is fixedly mounted on the clamping support 2 by side clamping bolts 33. The side clamping plate 31 and the side clamping vertical plate 32 in the L-shaped structure serve as support for the side clamping mechanism 3, thereby ensuring the stability of the side clamping mechanism 3 in lateral and vertical installation, improving the overall installation stability, and thereby improving the clamping effect on the connecting shaft body 5.

[0030] The adjusting screw 34 is rotatably connected to a side of the connecting shaft body 5 close to the connecting shaft body 5, and the arc-shaped side clamping seat 38 is provided with an arc-shaped groove matching the outer periphery of the connecting shaft body 5. The arc-shaped side clamping seat 38 is used to clamp the outer periphery of the connecting shaft body 5, which can not only avoid crushing of the workpiece surface, but also provide reliable clamping force.

[0031] The arc-shaped side clamp seat 38 is provided with a limiting groove 381, and the side wall of the limiting groove 381 is provided with a penetrating connecting groove 382. The limiting groove 381 is rotatably connected to the limiting block 37, and the limiting block 37 is fixedly provided with a connecting rod 36. The connecting rod 36 penetrates the connecting groove 382 and is fixedly connected to the adjusting screw 34.

[0032] When the connecting shaft body 5 needs to be laterally clamped, the driving screw handle 35 is turned to drive the adjusting screw 34 to rotate, driving the arc-shaped side clamp seat 38 to slide in the side clamp mounting groove 22, so that the arc-shaped groove at the end of the arc-shaped side clamp seat 38 fits with the outer peripheral surface of the connecting shaft body 5, thereby fixing the connecting shaft body 5 in the shaft mounting hole 21 to ensure that the connecting shaft body 5 remains stable during turning.

[0033] The pressing mechanism 4 includes a pressing base 41, which is fixedly installed in the pressing installation groove 103 by a pressing bolt 43, and a pressing support block 44 that matches the end of the connecting shaft body 5 is fixedly provided on the pressing base 41, and countersunk screw holes 42 are provided at the dead corners of the pressing base 41, so that the pressing base 41 can be completely sunk into the pressing installation groove 103 during installation, thereby preventing interference with the connection caused by the installation protrusion of the pressing bolt 43.

[0034] A top pressure limit block 45 is fixedly arranged on the top pressure support block 44, and the top pressure limit block 45 cooperates with the shaft groove 51 set at the end of the connecting shaft body 5. Through the cooperation of the top pressure limit block 45 and the shaft groove 51, the connecting shaft body 5 is limited in the axial direction to prevent the connecting shaft body 5 from axial rotation during turning, thereby ensuring that the connecting shaft body 5 remains stable during turning.

[0035] The working principle of the utility model is as follows: when it is necessary to turn the eccentric connecting shaft with a hollow angle, first, the side clamping mechanism 3 and the top pressing mechanism 4 are correspondingly installed on the clamping support 2 and the tooling base 1, and then the connecting shaft body 5 is inserted into the shaft mounting hole 21, so that the lower end surface of the connecting shaft body 5 is in contact with the upper end surface of the top pressing support block 44, and the top pressing limit block 45 is inserted into the shaft groove 51 of the connecting shaft body 5, and then the driving screw handle 35 is turned to drive the adjusting screw 34 to rotate, and drive the arc-shaped side clamp seat 38 to slide in the side clamp mounting groove 22, so that the arc groove at the end of the arc-shaped side clamp seat 38 is in contact with the outer circumferential surface of the connecting shaft body 5, thereby fixing and clamping the connecting shaft body 5 in the shaft mounting hole 21. When the connecting shaft body 5 is fixed in both axial and radial directions, the tooling base 1 is fixedly installed on the lathe, and the connecting shaft body 5 is turned by the lathe to ensure that the connecting shaft body 5 remains stable during turning.

[0036] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A vehicle-use fixture for a connecting shaft with an eccentric spatial angle, characterized in that: The tooling base (1) comprises a tooling base (1) for being fixedly mounted on a lathe, a clamping support (2) being fixedly mounted on the upper end of the tooling base (1), a shaft mounting hole (21) for placing a connecting shaft body (5) being provided on the clamping support (2), a side clamping mounting groove (22) being connected to the shaft mounting hole (21) being provided on the clamping support (2), and a side clamping mechanism (3) for clamping the side end of the connecting shaft body (5) being mounted at the side clamping mounting groove (22); A base groove (102) is provided at the center of the bottom of the tooling base (1), a top-pressing installation groove (103) connected to the shaft installation hole (21) is provided at the bottom of the base groove (102), and a top-pressing mechanism (4) for top-pressing and supporting the connecting shaft body (5) is installed at the top-pressing installation groove (103).

2. The vehicle-use fixture for a connecting shaft with an eccentric spatial angle according to claim 1, characterized in that: The side clamp mechanism (3) comprises a side clamp vertical plate (32), and the side clamp vertical plate (32) is fixedly mounted on the clamping support (2) via a side clamp bolt (33). An adjusting screw (34) for pressing the connecting shaft body (5) is threadedly connected through the side clamp vertical plate (32), and a driving screw handle (35) is fixedly connected to one end of the adjusting screw (34) away from the connecting shaft body (5).

3. The vehicle-use fixture for a connecting shaft with an eccentric spatial angle according to claim 2, characterized in that: The side clamping plate (31) is fixedly connected to the side clamping vertical plate (32), the side clamping plate (31) and the side clamping vertical plate (32) form an L-shaped structure, and the side clamping plate (31) is fixedly mounted on the clamping support (2) via side clamping bolts (33).

4. The vehicle-use fixture for a connecting shaft with an eccentric spatial angle according to claim 3, characterized in that: The adjusting screw rod (34) is rotatably connected to a side of the connecting shaft body (5) close to the side of the connecting shaft body (5), and the side of the connecting shaft body (38) is provided with an arc-shaped groove matching the outer periphery of the connecting shaft body (5).

5. The vehicle-use fixture for a connecting shaft with an eccentric spatial angle according to claim 4, characterized in that: The arc-shaped side clamp seat (38) is provided with a limiting groove (381), the side wall of the limiting groove (381) is provided with a penetrating connecting groove (382), the limiting groove (381) is rotatably connected to a limiting block (37), the limiting block (37) is fixedly provided with a connecting rod (36), and the connecting rod (36) penetrates the connecting groove (382) and is fixedly connected to the adjusting screw (34).

6. A vehicle-use fixture for a connecting shaft with an eccentric spatial angle according to any one of claims 1 to 5, characterized in that: The pressing mechanism (4) comprises a pressing base (41), the pressing base (41) being fixedly mounted on a pressing mounting groove (103) via a pressing bolt (43), and a pressing support block (44) matching the end of the connecting shaft body (5) being fixedly arranged on the pressing base (41).

7. The vehicle-use fixture for a connecting shaft with an eccentric spatial angle according to claim 6, characterized in that: A top pressure limiting block (45) is fixedly arranged on the top pressure supporting block (44), and the top pressure limiting block (45) cooperates with a shaft groove (51) arranged at the end of the connecting shaft body (5).

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