Positioning device for camshaft machining

Abstract

The utility model relates to the technical field of camshafts, in particular to a positioning device for camshaft processing, which comprises a mounting base, a clamping groove is arranged in the center of the mounting base, guide rods are fixedly mounted at four corners of the mounting base, guide rings are movably sleeved on the guide rods, and the guide rings are movably sleeved on the guide rods. Two clamping plates are movably mounted on the guide ring, clamping rings are arranged on the opposite sides of the clamping plates, a clamping mechanism is arranged on the front side of the mounting base, and an adjusting mechanism is arranged on the rear side of the mounting base. According to the cam shaft clamping device, the equipment can be matched with different cam shafts through the replaceable clamping plate, meanwhile, the clamping ring can be clamped on the cam shaft, the attaching degree between the cam shaft and the clamping ring is increased, damage to the cam shaft in the clamping process is reduced, the stability of the equipment in the using process is improved, and the service life of the equipment is prolonged. In addition, the height of the equipment can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of camshafts, in particular to a positioning device for camshaft machining. Background Technique

[0002] A camshaft is a component in a piston engine, and its function is to control the opening and closing actions of the valves. In the field of camshaft machining technology, when machining a camshaft, it is necessary to first position and clamp the camshaft so that the machining quality will not be affected by the swing or movement of the camshaft during the machining process. The existing clamping devices cannot be adaptively clamped according to the shape of the camshaft, and the camshaft may be damaged in part due to excessive clamping during the clamping process. In addition, general clamping mechanisms cannot be adaptively clamped according to camshafts of different specifications, so that camshafts of different specifications may be unstable during the clamping process. For this reason, we propose a positioning device for camshaft machining to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a positioning device for camshaft machining to solve the problems that the existing clamping devices cannot be adaptively clamped according to the shape of the camshaft and that general clamping mechanisms cannot be adaptively clamped according to camshafts of different specifications as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A positioning device for camshaft machining, including an installation base, a clamping groove is opened at the central position of the installation base,

[0005] Guide rods are fixedly installed at the four corners of the installation base, guide rings are movably sleeved on the guide rods, two groups of clamping plates are movably installed on the guide rings, clamping rings are arranged on the opposite sides of the clamping plates, a clamping mechanism is arranged on the front side of the installation base, and an adjusting mechanism is arranged on the rear side of the installation base.

[0006] Preferably, the engaging mechanism includes a mounting plate fixedly installed on two guide rings at the front side. A double-layer gear is rotatably installed at the central position of the mounting plate. Two racks are movably arranged on both sides of the upper side of the mounting plate. First limit frames are fixedly installed on both the upper and lower sides of the mounting plate. The upper rack meshes with the rear side of the double-layer gear, and the lower rack meshes with the front side of the double-layer gear. The racks move within the first limit frames. Single-layer gears are rotatably installed at both the left and right ends of the mounting plate. The width of the single-layer gear is one-half of that of the double-layer gear. The left single-layer gear meshes with the upper rack, and the right single-layer gear meshes with another double-layer gear. The double-layer gear is rotatably installed on the right side of the mounting plate and meshes with the lower rack. A runner is fixedly installed on the single-layer gear. A first hinge rod is rotatably installed on the runner. A second hinge rod is rotatably installed on the first hinge rod. A second limit frame is fixedly installed on the rear guide ring. The second hinge rod moves within the second limit frame. One end of the second hinge rod is fixedly installed with a fixing plate, and the engaging plate is installed on the fixing plate.

[0007] Preferably, a fixing ring is fixedly installed on the first limit frame. The position of the fixing ring corresponds to that of the double-layer gear. A loading cylinder is fixedly installed at the central position of the double-layer gear. A square movable rod is movably installed within the loading cylinder. A spring is sleeved on the square movable rod. A gear block is fixedly installed on the square movable rod. A toothed groove ring is fixedly installed on the fixing ring. The gear block is engaged within the toothed groove ring. A handle is fixedly installed on the gear block.

[0008] Preferably, three jacks are formed on the fixing plate. Three fixing screws are fixedly installed on one side of the engaging plate. The fixing screws are inserted into the jacks, and a screw sleeve is sleeved on the jacks.

[0009] Preferably, the adjusting mechanism includes a mounting rod fixedly installed on two rear guide rings. A screw sleeve is fixedly installed at the central position of the mounting rod. The screw sleeve is sleeved on an adjusting screw rod, and the adjusting screw rod rotates on the mounting base.

[0010] Preferably, the engaging groove is formed between two engaging plates. The cross-section of the engaging groove is stepped, and the size of the engaging groove is consistent with the standard size of the camshaft.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model enables the device to adapt to different camshafts through replaceable clamping plates. At the same time, the clamping ring can be clamped on the camshaft, increasing the degree of fit between the camshaft and the clamping ring, reducing the damage to the camshaft during the clamping process, and increasing the stability of the device during use. In addition, the height of the device can be adjusted, which not only increases the adaptability to the camshaft, but also enables the camshaft to be pressed after clamping, making the camshaft more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0014] Figure 2 It is a sectional structural schematic diagram of the mounting plate of the present utility model;

[0015] Figure 3 It is a rear view structural schematic diagram of the present utility model;

[0016] Figure 4 For the present utility model Figure 2 A partial enlarged schematic diagram of A in it.

[0017] In the figure: 1, mounting base; 2, clamping groove; 3, guide rod; 4, guide ring; 5, clamping plate; 6, clamping ring; 7, mounting plate; 8, double-layer gear; 9, rack; 10, first limiting frame; 11, single-layer gear; 12, fixing ring; 13, loading cylinder; 14, square movable rod; 15, spring; 16, gear block; 17, tooth groove ring; 18, handle; 19, runner; 20, first hinge rod; 21, second hinge rod; 22, second limiting frame; 23, fixing plate; 24, jack; 25, fixing screw; 26, screw sleeve; 27, mounting rod; 28, adjusting screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0019] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a positioning device for camshaft machining, including a mounting base 1, a clamping groove 2 is provided at the central position of the mounting base 1,

[0020] Guide rods 3 are fixedly installed at the four corners of the mounting base 1, guide rings 4 are movably sleeved on the guide rods 3, two sets of clamping plates 5 are movably installed on the guide rings 4, clamping rings 6 are arranged on the opposite sides of the clamping plates 5, a clamping mechanism is arranged on the front side of the mounting base 1, and an adjusting mechanism is arranged on the rear side of the mounting base 1. The device makes the clamping more stable through the clamping plates 5 that can be adaptively clamped. In addition, an adjusting mechanism is also provided to adjust the overall height of the device;

[0021] Furthermore, the clamping mechanism includes a mounting plate 7, the mounting plate 7 is fixedly installed on the two front-side guide rings 4, a double-layer gear 8 is rotatably installed at the central position of the mounting plate 7, racks 9 are movably arranged on both sides of the upper side of the mounting plate 7, first limiting frames 10 are fixedly installed on both the upper and lower sides of the mounting plate 7, the upper rack 9 meshes with the rear side of the double-layer gear 8, the lower rack 9 meshes with the front side of the double-layer gear 8, the racks 9 move within the first limiting frames 10, single-layer gears 11 are rotatably installed at the left and right ends of the mounting plate 7, the width of the single-layer gear 11 is one-half of that of the double-layer gear 8, the left single-layer gear 11 meshes with the upper rack 9, the right single-layer gear 11 meshes with another double-layer gear 8, the double-layer gear 8 is rotatably installed on the right side of the mounting plate 7, the double-layer gear 8 meshes with the lower rack 9, a runner 19 is fixedly installed on the single-layer gear 11, a first hinge rod 20 is rotatably installed on the runner 19, a second hinge rod 21 is rotatably installed on the first hinge rod 20, a second limiting frame 22 is fixedly installed on the rear guide ring 4, the second hinge rod 21 moves within the second limiting frame 22, and a fixing plate 23 is fixedly installed at one end of the second hinge rod 21, and the clamping plate 5 is installed on the fixing plate 23. This structure enables the relative movement of the clamping plates 5 when the double-layer gear 8 rotates, thereby realizing clamping and increasing the convenience and clamping of the device.

[0022] Furthermore, a fixing ring 12 is fixedly installed on the first limiting frame 10, the position of the fixing ring 12 is opposite to that of the double-layer gear 8, a loading cylinder 13 is fixedly installed at the central position of the double-layer gear 8, a square movable rod 14 is movably installed within the loading cylinder 13, a spring 15 is sleeved on the square movable rod 14, a gear block 16 is fixedly installed on the square movable rod 14, a tooth groove ring 17 is fixedly installed on the fixing ring 12, the gear block 16 is clamped within the tooth groove ring 17, and a handle 18 is fixedly installed on the gear block 16. This mechanism enables the clamping of the device to be more stable and prevents it from disengaging during the machining process.

[0023] Furthermore, three sets of jacks 24 are provided on the fixing plate 23. Three fixing screws 25 are fixedly installed on one side of the engaging plate 5. The fixing screws 25 are inserted into the jacks 24, and a screw sleeve 26 is sleeved on the jacks 24. This mechanism enables the replacement of the engaging plate 5, increasing the adaptability of the equipment during use.

[0024] Furthermore, the adjusting mechanism includes a mounting rod 27. The mounting rod 27 is fixedly installed on the two rear guiding rings 4. A screw sleeve 26 is fixedly installed at the central position of the mounting rod 27. The screw sleeve 26 is sleeved on the adjusting screw 28. The adjusting screw 28 rotates on the mounting base 1. This structure enables the adjustment of the height of the equipment and can press the camshaft, increasing the stability of the equipment during use.

[0025] Furthermore, the engaging groove 2 is provided between the two engaging plates 5. The cross-section of the engaging groove 2 is stepped, and the size of the engaging groove 2 is the same as the standard size of the camshaft. This structure enables the equipment to quickly engage camshafts of different sizes, increasing the adaptability of the equipment during use.

[0026] Working principle: During use, place the camshaft in the engaging groove 2, then pinch the handle 18 to pull out the gear block 16. At this time, the gear block 16 disengages from the tooth groove ring 17. At this time, the square movable rod 14 compresses the spring 15, and then rotate the gear block 16. At this time, the double-layer gear 8 rotates to drive the rack 9 to rotate, and the rotation of the rack 9 drives the single-layer gear 11 to rotate. The rotation of the single-layer gear 11 drives the runner 19 to rotate. The rotation of the runner 19 drives the first hinge rod 20 to move towards the mounting base 1. At this time, the second hinge rod 21 slides in the second limiting frame 22 to make the fixing plate 23 move relatively, so that the engaging plate 5 clamps the camshaft, and the engaging ring 6 is engaged in the groove on the camshaft. Then release the gear block 16 so that the gear block 16 is re-engaged in the tooth groove ring 17 under the resilience of the spring 15 to complete the limit. Then rotate the adjusting screw 28, and through the threaded action with the screw sleeve 26, the mounting rod 27 descends, so that the engaging ring 6 presses the groove on the camshaft for stability. The above is the entire working principle of the present invention.

[0027] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A positioning device for camshaft processing, comprising a mounting base (1), wherein a locking groove (2) is provided at the center of the mounting base (1), characterized in that: Guide rods (3) are fixedly mounted at the four corners of the mounting base (1); guide rings (4) are movably sleeved on the guide rods (3); two groups of clamping plates (5) are movably mounted on the guide rings (4); clamping rings (6) are arranged on opposite sides of the clamping plates (5); a clamping mechanism is arranged on the front side of the mounting base (1); and an adjustment mechanism is arranged on the rear side of the mounting base (1).

2. A camshaft machining positioning device according to claim 1, characterized in that: The engaging mechanism comprises a mounting plate (7), wherein the mounting plate (7) is fixedly mounted on two sets of guide rings (4) on the front side, a double-layer gear (8) is rotatably mounted at the center position of the mounting plate (7), racks (9) are movably arranged on both sides of the upper side of the mounting plate (7), and first limiting frames (10) are fixedly mounted on both upper and lower sides of the mounting plate (7), the rack (9) on the upper side is meshed with the rear side of the double-layer gear (8), and the rack (9) on the lower side is meshed with the front side of the double-layer gear (8), and the rack (9) moves in the first limiting frame (10), and single-layer gears (11) are rotatably mounted on the left and right ends of the mounting plate (7), and the width of the single-layer gear (11) is half of the width of the double-layer gear (8), and the single-layer gear (11) on the left side is fixedly mounted on the rear side of the double-layer gear (8). The single-layer gear (11) is meshed with the rack (9) on the upper side, and the single-layer gear (11) on the right side is meshed with another group of double-layer gears (8). The double-layer gear (8) is rotatably mounted on the right side of the mounting plate (7). The double-layer gear (8) is meshed with the rack (9) on the lower side. A rotating wheel (19) is fixedly mounted on the single-layer gear (11). A first hinge rod (20) is rotatably mounted on the rotating wheel (19). A second hinge rod (21) is rotatably mounted on the first hinge rod (20). A second limit frame (22) is fixedly mounted on the guide ring (4) on the rear side. The second hinge rod (21) moves in the second limit frame (22). A fixing plate (23) is fixedly mounted on one end of the second hinge rod (21). The locking plate (5) is mounted on the fixing plate (23).

3. A camshaft machining positioning device according to claim 2, characterized in that: A fixing ring (12) is fixedly mounted on the first limiting frame (10), the position of the fixing ring (12) is opposite to the position of the double-layer gear (8), a loading cylinder (13) is fixedly mounted at the center position of the double-layer gear (8), a square movable rod (14) is movably mounted in the loading cylinder (13), a spring (15) is sleeved on the square movable rod (14), a gear block (16) is fixedly mounted on the square movable rod (14), a toothed ring (17) is fixedly mounted on the fixing ring (12), the gear block (16) is engaged in the toothed ring (17), and a handle (18) is fixedly mounted on the gear block (16).

4. A camshaft machining positioning device according to claim 2, characterized in that: The fixing plate (23) is provided with three groups of insertion holes (24), one side of the clamping plate (5) is fixedly mounted with three groups of fixing screws (25), the fixing screws (25) are inserted into the insertion holes (24), and the insertion holes (24) are sleeved with screw sleeves (26).

5. A camshaft machining positioning device according to claim 1, characterized in that: The adjustment mechanism comprises a mounting rod (27), wherein the mounting rod (27) is fixedly mounted on two sets of guide rings (4) at the rear side, a screw sleeve (26) is fixedly mounted at the center position of the mounting rod (27), the screw sleeve (26) is sleeved on an adjustment screw rod (28), and the adjustment screw rod (28) rotates on the mounting base (1).

6. A camshaft machining positioning device according to claim 1, characterized in that: The engaging groove (2) is provided between two sets of engaging plates (5), the cross section of the engaging groove (2) is stepped, and the size of the engaging groove (2) is consistent with the standard size of the camshaft.

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