Cam machining equipment

Abstract

The utility model discloses cam processing equipment, which relates to the technical field of cam processing and comprises a base, a fixing mechanism is arranged at the top of the base close to the front side, and a rotating mechanism is arranged at the top of the base close to the rear side. According to the cam machining equipment, the grinding roller makes contact with the cam body and grinds the cam body, the guide roller makes contact with the cam standard part along with continuous reduction of the grinding size of the cam body, and the guide roller and the grinding roller are limited to only move along the curved surface track of the cam standard part; on one hand, the size precision of the polished cam body can be the same as that of the cam standard part, on the other hand, excessive polishing of the cam body can be avoided, and when the guide roller completely fits the curved surface track of the cam standard part to move, the size precision of the cam body is completely the same as that of the cam standard part; and therefore, the grinding precision is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cam processing, in particular to a cam processing device. Background Art

[0002] A cam is a mechanical component with a curved profile or groove. It is often a key component in mechanical transmission systems, transmitting power and achieving specific motion patterns through contact and movement with a driven member. The shape and motion of a cam can be designed to meet specific application requirements. Common cam shapes include disc cams and cylindrical cams. In industrial production, cams are widely used in various mechanical equipment.

[0003] In the prior art, for example, Chinese patent number CN214265047U discloses a cam disc grinding device, which includes a working box, a first chute on both sides of the inner cavity of the working box, a first slider in sliding connection with the inner cavity of the first chute, a spring fixedly connected to the top of the first slider, an end of the spring away from the first slider fixedly connected to the top of the inner cavity of the first chute, and an electric telescopic rod fixedly connected to the bottom of the inner cavity of the first chute. The utility model enables the grinding device to grind both sides of the cam disc at the same time through the cooperation of the working box, the first chute, the first slider, the spring, the electric telescopic rod, the moving plate, the motor, the rotating shaft, the driving gear, the driven gear, the screw, the second chute, the second slider, the threaded sleeve, the grinder, the positioning table, the first positioning plate, the bolt, the clamping plate, and the second positioning plate, thereby achieving the purpose of high grinding efficiency of the grinding device, reducing the processing time to a certain extent, and improving the working efficiency of the grinding device.

[0004] In the above patent, although the device can grind the two end faces of the cam, it cannot grind the cam curved surface. Traditional grinding equipment is difficult to control the grinding accuracy according to the curved surface profile of the cam when grinding the cam curved surface, which leads to uneven grinding and affects product quality. For this reason, the utility model provides a cam processing equipment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a cam processing device, which solves the problem that it is difficult to control the grinding accuracy according to the curved surface profile of the cam, thereby causing uneven grinding and affecting product quality.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a cam processing device, comprising a base, a fixing mechanism is provided at the top of the base near the front side, a rotating mechanism is provided at the top of the base near the rear side, and a processing mechanism is provided at the top of the base behind the fixing mechanism;

[0007] The rotating mechanism includes a first motor fixedly mounted on the top of the base near the rear side, a rotating shaft fixedly mounted on the output end of the first motor, and a cam standard part fixedly sleeved on the outer wall of the rotating shaft;

[0008] The processing mechanism includes:

[0009] An elastic component is arranged on the top of the base;

[0010] A grinding assembly is arranged on the inner side of the elastic assembly, and the grinding assembly includes a mounting frame, a rotating shaft is rotatably arranged between the inner walls of the mounting frame, a guide roller is rotatably arranged on the outer wall of the rotating shaft near the rear side, and a grinding roller is fixedly sleeved on the outer wall of the mounting frame near the front side.

[0011] Preferably, the fixing mechanism includes a first cylinder and a second cylinder, the first cylinder is fixedly installed on the top of the base near the front side, the telescopic end of the first cylinder is rotatably installed with a first fixing plate, the number of the second cylinders is set to two sides, and they are symmetrically distributed on the left and right sides of the base, and the telescopic end of the second cylinder is fixedly installed with a positioning plate.

[0012] Preferably, the rotating shaft is mounted on the top of the base via a bearing seat, and a second fixing plate is fixedly mounted on the front end of the rotating shaft.

[0013] Preferably, the elastic component includes a gantry fixedly mounted on the top of the base, a spline shaft slidingly passing through the top of the gantry, a connecting plate fixedly mounted on the bottom end of the spline shaft, a thrust spring sleeved on the outside of the spline shaft, the bottom end of the thrust spring fixedly connected to the connecting plate, the top of the thrust spring fixedly connected to the top inside the gantry, the connecting plate fixedly connected to the mounting frame by bolts, a second motor fixedly mounted near the middle of the bottom of the connecting plate, and a first bevel gear fixedly mounted on the output end of the second motor.

[0014] Preferably, the outer wall fixed sleeve of the rotating shaft is provided with a second bevel gear meshing with the first bevel gear.

[0015] Preferably, two third cylinders for lifting the mounting bracket are installed on the top of the base, and a cam body is placed between the inner sides of the two positioning plates. Beneficial effects

[0016] The utility model provides a cam processing device. Compared with the existing technology, it has the following beneficial effects:

[0017] (1) The cam processing equipment contacts and grinds the cam body through the grinding roller. As the grinding size of the cam body becomes smaller, the guide roller will contact the cam standard part and limit the guide roller and the grinding roller to move only along the curved track of the cam standard part. On the one hand, the dimensional accuracy of the cam body after grinding can be the same as that of the cam standard part. On the other hand, it can avoid excessive grinding of the cam body. When the guide roller completely fits the curved track of the cam standard part, the dimensional accuracy of the cam body is completely the same as that of the cam standard part, thereby effectively improving the grinding accuracy.

[0018] (2) The cam processing equipment uses the third cylinder to lift the mounting frame so that the grinding roller and the guide roller no longer contact the cam body and the cam standard parts, and cooperates with the retraction of the first cylinder to reset the first fixing plate, thereby facilitating the unloading of the cam body, and by removing the connecting bolts between the connecting plate and the mounting frame, it is convenient to replace or maintain the entire grinding assembly later. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional appearance of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional appearance of the fixing mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional appearance of the rotating mechanism of the present invention;

[0022] Figure 4 It is a three-dimensional appearance schematic diagram of the processing mechanism of the present utility model.

[0023] In the figure: 1. base; 2. fixing mechanism; 21. first cylinder; 22. first fixing plate; 23. second cylinder; 24. positioning plate; 3. rotating mechanism; 31. first motor; 32. rotating shaft; 33. cam standard part; 34. second fixing plate; 4. processing mechanism; 41. elastic component; 411. gantry; 412. spline shaft; 413. thrust spring; 414. connecting plate; 415. second motor; 416. first bevel gear; 42. grinding assembly; 421. mounting frame; 422. rotating shaft; 423. grinding roller; 424. guide roller; 425. second bevel gear; 5. third cylinder; 6. cam body. DETAILED DESCRIPTION

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

[0025] This utility model provides two technical solutions:

[0026] Figure 1-Figure 4 The first embodiment is shown: a cam processing device, comprising a base 1, a fixing mechanism 2 is provided at the top of the base 1 near the front side, a rotating mechanism 3 is provided at the top of the base 1 near the rear side, and a processing mechanism 4 is provided at the top of the base 1 behind the fixing mechanism 2;

[0027] The rotating mechanism 3 includes a first motor 31 fixedly mounted on the top of the base 1 near the rear side. A rotating shaft 32 is fixedly mounted on the output end of the first motor 31. A cam standard component 33 is fixedly sleeved on the outer wall of the rotating shaft 32. The cam standard component 33 is a standard sample of cam products, and its dimensions also meet the quality requirements of the product. By utilizing the curved surface profile of the cam standard component 33, it is convenient to subsequently outline the grinding trajectory of the cam body 6, thereby improving product quality.

[0028] The processing mechanism 4 includes:

[0029] The elastic component 41 is provided on the top of the base 1;

[0030] The grinding assembly 42 is arranged on the inner side of the elastic assembly 41. The grinding assembly 42 includes a mounting frame 421. A rotating shaft 422 is rotatably arranged between the inner walls of the mounting frame 421. A guide roller 424 is rotatably arranged on the outer wall of the rotating shaft 422 near the rear side. A grinding roller 423 is fixedly sleeved on the outer wall of the mounting frame 421 near the front side. The diameters of the grinding roller 423 and the guide roller 424 are the same. When the guide roller 424 contacts the cam standard part 33, it can roll along the curved track of the cam standard part 33.

[0031] The fixing mechanism 2 includes a first cylinder 21 and a second cylinder 23. The first cylinder 21 is fixedly installed on the top of the base 1 near the front side. The telescopic end of the first cylinder 21 is rotatably installed with a first fixing plate 22. The number of second cylinders 23 is set on both sides and is symmetrically distributed on the left and right sides of the base 1. The telescopic end of the second cylinder 23 is fixedly installed with a positioning plate 24. The two positioning plates 24 are gathered to the middle by the two second cylinders 23, but without contact. Then the cam body 6 is placed in the positioning plate 24, and then the two positioning plates 24 are continued to be gathered together, so that the cam body 6 is centered.

[0032] The rotating shaft 32 is installed on the top of the base 1 through the bearing seat. The front end of the rotating shaft 32 is fixedly installed with a second fixing plate 34. The first cylinder 21 pushes the first fixing plate 22 to contact the front end surface of the cam body 6 and apply pressure. At the same time, the rear end of the cam body 6 contacts the second fixing plate 34, thereby fixing the cam body 6.

[0033] The elastic component 41 includes a gantry 411 fixedly mounted on the top of the base 1, and a spline shaft 412 slides through the top of the gantry 411, and a connecting plate 414 is fixedly mounted on the bottom end of the spline shaft 412. A thrust spring 413 is sleeved on the outside of the spline shaft 412, and the bottom end of the thrust spring 413 is fixedly connected to the connecting plate 414. The top of the thrust spring 413 is fixedly connected to the top inside the gantry 411, and the connecting plate 414 is fixedly connected to the mounting frame 421 by bolts. A second motor 415 is fixedly mounted near the middle of the bottom of the connecting plate 414, and a first bevel gear 416 is fixedly mounted on the output end of the second motor 415. The mounting frame 421 is no longer supported by the contraction of the third cylinder 5. Under the action of the thrust spring 413, the grinding roller 423 and the guide roller 424 move downward. At this time, the grinding roller 423 contacts the cam body 6.

[0034] Figure 1-Figure 4 A second embodiment is shown, the main difference from the first embodiment is that the outer wall fixed sleeve of the rotating shaft 422 is provided with a second bevel gear 425 meshing with the first bevel gear 416. By starting the second motor 415, the first bevel gear 416 can be driven to rotate, and the second bevel gear 425 can be used to drive the rotating shaft 422 to rotate, and the cam body 6 can be polished in cooperation with the polishing roller 423.

[0035] Two third cylinders 5 for lifting the mounting frame 421 are installed on the top of the base 1. A cam body 6 is placed between the inner sides of the two positioning plates 24. The mounting frame 421 can be lifted up by the third cylinder 5 so that the grinding roller 423 and the guide roller 424 are not in contact with the cam body 6 and the cam standard part 33. In addition, the third cylinder 5 and the mounting frame 421 are not fixedly connected, and will not interfere with the mounting frame 421 when fully retracted.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] During operation, the two second cylinders 23 bring the two positioning plates 24 together toward the middle, but without contacting each other, and then place the cam body 6 in the positioning plates 24, and then continue to bring the two positioning plates 24 together, so that the cam body 6 is centered, and then the first cylinder 21 pushes the first fixing plate 22 to contact and apply pressure to the front end surface of the cam body 6, while the rear end of the cam body 6 contacts the second fixing plate 34, thereby achieving the effect of fixing the cam body 6. Afterwards, the positioning plate 24 is moved outward and reset to avoid subsequent interference with the cam body 6, and then the third cylinder 5 is contracted and no longer supports the mounting frame 421. Under the action of the thrust spring 413, the grinding roller 423 and the guide roller 424 move downward. At this time, the grinding roller 423 contacts the cam body 6, and then the first motor 31 drives the cam standard part 33 and the cam body 6 to rotate. During the rotation of the cam body 6, the grinding roller 423 reciprocates up and down under the action of the cam body 6, and cooperates with the second motor 415 to drive the grinding roller 423 to rotate, so that The rotating cam body 6 is polished. As the polished size of the cam body 6 becomes smaller, the guide roller 424 will contact the cam standard part 33 and limit the guide roller 424 and the polishing roller 423 to move only along the curved trajectory of the cam standard part 33. On the one hand, the dimensional accuracy of the cam body 6 after polishing can be the same as that of the cam standard part 33. On the other hand, excessive polishing of the cam body 6 can be avoided. When the guide roller 424 completely fits the curved trajectory of the cam standard part 33, the dimensional accuracy of the cam body 6 is completely the same as that of the cam standard part 33, thereby effectively improving the polishing accuracy. After the polishing is completed, the mounting frame 421 is lifted by the third cylinder 5, so that the polishing roller 423 and the guide roller 424 no longer contact the cam body 6 and the cam standard part 33, and the first cylinder 21 is retracted to reset the first fixing plate 22, thereby facilitating the unloading of the cam body 6, and by removing the connecting bolts between the connecting plate 414 and the mounting frame 421, the entire polishing assembly 42 can be replaced or maintained later.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cam processing device, comprising a base (1), characterized in that: A fixing mechanism (2) is provided at a position near the front side of the top of the base (1), a rotating mechanism (3) is provided at a position near the rear side of the top of the base (1), and a processing mechanism (4) is provided at a position behind the fixing mechanism (2) on the top of the base (1); The rotating mechanism (3) comprises a first motor (31) fixedly mounted on the top of the base (1) near the rear side, a rotating shaft (32) fixedly mounted on the output end of the first motor (31), and a cam standard part (33) fixedly sleeved on the outer wall of the rotating shaft (32); The processing mechanism (4) comprises: An elastic component (41) is disposed on the top of the base (1); A grinding assembly (42) is arranged on the inner side of the elastic assembly (41), and the grinding assembly (42) includes a mounting frame (421). A rotating shaft (422) is rotatably arranged between the inner walls of the mounting frame (421), a guide roller (424) is rotatably arranged on the outer wall of the rotating shaft (422) near the rear side, and a grinding roller (423) is fixedly sleeved on the outer wall of the mounting frame (421) near the front side.

2. The cam processing equipment according to claim 1, characterized in that: The fixing mechanism (2) comprises a first cylinder (21) and a second cylinder (23), wherein the first cylinder (21) is fixedly mounted on the top of the base (1) near the front side, and a first fixing plate (22) is rotatably mounted on the telescopic end of the first cylinder (21), and the second cylinders (23) are arranged on two sides and symmetrically distributed on the left and right sides of the base (1), and a positioning plate (24) is fixedly mounted on the telescopic end of the second cylinder (23).

3. The cam processing equipment according to claim 1, characterized in that: The rotating shaft (32) is mounted on the top of the base (1) via a bearing seat, and a second fixing plate (34) is fixedly mounted on the front end of the rotating shaft (32).

4. The cam processing equipment according to claim 1, characterized in that: The elastic component (41) includes a gantry (411) fixedly mounted on the top of the base (1), a spline shaft (412) slidingly passing through the top of the gantry (411), a connecting plate (414) fixedly mounted on the bottom end of the spline shaft (412), a thrust spring (413) sleeved on the outside of the spline shaft (412), the bottom end of the thrust spring (413) fixedly connected to the connecting plate (414), the top end of the thrust spring (413) fixedly connected to the top inside the gantry (411), the connecting plate (414) fixedly connected to the mounting frame (421) via bolts, a second motor (415) fixedly mounted near the middle of the bottom of the connecting plate (414), and a first bevel gear (416) fixedly mounted on the output end of the second motor (415).

5. The cam processing equipment according to claim 4, characterized in that: The outer wall fixed sleeve of the rotating shaft (422) is provided with a second bevel gear (425) meshing with the first bevel gear (416).

6. The cam processing equipment according to claim 2, characterized in that: Two third cylinders (5) for lifting the mounting frame (421) are installed on the top of the base (1), and a cam body (6) is placed between the inner sides of the two positioning plates (24).

Images