Shaft part machining and positioning device for numerical control machine tool

Abstract

The utility model relates to the field of shaft machining, and discloses a shaft part machining and positioning device for a numerical control machine tool, a plurality of mounting sliding grooves distributed at equal intervals are formed in the front side and the rear side of a mounting base in a penetrating mode, and a plurality of fixing bolts are symmetrically mounted above the mounting base through the mounting sliding grooves. A transverse plate is arranged above the positions between the multiple fixing bolts located on the same side through locking nuts, a shaft is placed above the mounting base, the surface of the outer ring of the shaft is tightly attached to the surface of the lower end of the transverse plate, the transverse plate is tightly pressed above the shaft through the fixing bolts, and then the shaft can be fixed. The height of the transverse plates can be adjusted according to the size, the device is suitable for shafts of various sizes, the multiple shafts can be fixed at the same time, the transverse plates are arranged on the front side and the rear side of each shaft, and the longitudinal rods are arranged on the left side and the right side of each shaft, so that the shafts can be positioned front, back, left and right, and cannot shake; and the fixing stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of shaft processing, in particular to a shaft parts processing and positioning device for a numerically controlled machine tool. Background Art

[0002] Shaft parts are usually used to transmit motion and torque. When making connections, the shaft keyway locking method can usually be used. In the industry, the shaft keyway refers to two grooves on the shaft workpiece. Usually, it is fixed by a positioning device and then processed by a milling machine. A shaft part positioning device is disclosed in the Chinese utility model patent with the announcement number CN219684672U, which mainly includes a positioning plate, and the top surface of the positioning plate is provided with two groups of positioning grooves for placing shaft parts. The positioning grooves extend along the length direction of the positioning plate. A positioning assembly for simultaneously fixing shaft parts in two positioning grooves is provided between the positioning grooves. The two shaft parts are respectively placed in the positioning grooves on the positioning plate, and then the two shaft parts are simultaneously fixed in the positioning grooves on the positioning plate by the positioning assembly on the positioning plate, and then removed at the same time after the processing is completed.

[0003] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: in the above-mentioned structure, the shaft is placed in the positioning groove and then fixed by the positioning block. When the size of the shaft is much larger than the positioning groove, there is a large height between the upper part of the outer ring of the shaft and the positioning plate. At this time, it is difficult to completely fix the two shafts with only one fixing bolt. When only one shaft is fixed, one of the positioning blocks will be tilted due to the lack of contact points, and the fixing effect is poor. For this reason, we designed a positioning device for machining shaft parts for CNC machine tools. Utility Model Content

[0004] In order to solve the technical problem of poor fixing effect on shafts, the utility model provides a shaft parts machining and positioning device for a numerically controlled machine tool.

[0005] The utility model is implemented by the following technical scheme: a shaft parts processing and positioning device for a CNC machine tool, comprising a mounting seat, a plurality of mounting grooves with equal spacing are formed through the front and rear sides of the mounting seat, a plurality of fixing bolts are symmetrically installed above the mounting seat through the mounting grooves, and a transverse plate is arranged above the plurality of fixing bolts on the same side through locking nuts, the shaft is placed above the mounting seat, and the outer ring surface of the shaft is tightly fitted with the lower end surface of the transverse plate.

[0006] As a further improvement of the above scheme, the cross section of the mounting slot is a convex-shaped structure, the head of the fixing bolt is slidably placed in the mounting slot, and the fixing bolt is connected to the mounting seat through a fixing nut, and the cross section of the inverted fixing bolt is consistent with it, thereby facilitating the fixing bolt to be installed in the mounting slot, and its position can be adjusted as needed, so that the transverse plate is in a desired position;

[0007] The upper end edge of the mounting groove is chamfered to form an arc surface. When the shaft is placed on the mounting seat, the outer ring surface of the shaft may contact the edge of the mounting groove. The chamfered design can avoid scratches on the shaft surface caused by sharp points.

[0008] As a further improvement of the above scheme, an adjustment groove is formed through the upper and lower end surfaces of the transverse plate, the screw of the fixing bolt passes through the adjustment groove and is placed above it, and a locking nut is threadedly connected to the top of the transverse plate. After the transverse plate is sleeved on the top of the fixing bolt through the adjustment groove, the transverse plate contacts the surface of the shaft, and then the locking nut is screwed on the fixing bolt, so that the transverse plate can be tightly pressed on the shaft, thereby fixing the shaft.

[0009] As a further improvement of the above solution, the inner surfaces of the two front and rear transverse plates are tightly fitted with the outer surface of the shaft, which can limit the forward and backward movement of the shaft and prevent it from moving forward and backward.

[0010] As a further improvement of the above scheme, a longitudinal plate is arranged above the transverse plate, and two groups of longitudinal rods are arranged above the longitudinal plate, and each group of longitudinal rods includes two longitudinal rods. The outer ring surfaces of the two longitudinal rods in the same group are in close contact with the outer ring surface of the shaft. The longitudinal rods can limit the left and right movement of the shaft so that it cannot move left and right.

[0011] As a further improvement of the above scheme, an adjustment groove 2 is opened on the upper surface of the longitudinal plate, the longitudinal rod passes through the adjustment groove 2 and is placed above it, and a threaded section is provided on the longitudinal rod, and the longitudinal rod is fixed to the longitudinal plate by clamping nut 1 and clamping nut 2. The longitudinal rod can be fixed on the longitudinal plate, and then the left and right sides of the shaft can be limited and fixed, and the longitudinal rod can adjust the spacing as needed, which is suitable for shafts of various sizes and different positions of the shaft. At the same time, the height of the longitudinal plate is adjusted as needed, so that the threaded end on the longitudinal rod will not contact the surface of the shaft.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model slides a plurality of fixing bolts on the mounting seat, and the transverse plate is tightly pressed on the top of the shaft through the fixing bolts, so as to fix the shaft, and the height of the transverse plate can be adjusted according to the size in the middle, which is suitable for shafts of various sizes, and can fix multiple shafts at the same time, and the fixing effect is good;

[0014] 2. By arranging transverse plates on the front and rear sides of the shaft and arranging longitudinal rods on the left and right sides of the shaft, the shaft can be positioned in the front, rear, left and right directions, so that it cannot shake, thereby improving the stability of the fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a shaft parts processing and positioning device for a CNC machine tool provided by the utility model;

[0016] Figure 2 for Figure 2 Front view of the diagram;

[0017] Figure 3 It is a schematic diagram of the connection between the fixing bolts and the transverse plate and the longitudinal plate;

[0018] Figure 4 A schematic diagram of the existing axis.

[0019] Description of main symbols:

[0020] 1. Mounting seat; 11. Mounting slide; 12. Arc surface; 2. Shaft; 3. Fixing bolt; 31. Fixing nut; 32. Locking nut; 4. Transverse plate; 41. Adjusting slot 1; 5. Longitudinal plate; 51. Adjusting slot 2; 6. Longitudinal rod; 61. Threaded section; 62. Pressing nut 1; 63. Pressing nut 2. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] Example:

[0023] Please combine Figure 1-Figure 4 A shaft parts processing and positioning device for a CNC machine tool of the present embodiment includes a mounting seat 1, and a plurality of mounting grooves 11 with equal spacing are formed on the front and rear sides of the mounting seat 1. A plurality of fixing bolts 3 are symmetrically installed above the mounting seat 1 through the mounting grooves 11, and a transverse plate 4 is arranged above the plurality of fixing bolts on the same side through locking nuts 32. The shaft 2 is placed above the mounting seat 1, and the outer ring surface of the shaft 2 is tightly fitted with the lower end surface of the transverse plate 4.

[0024] The cross section of the mounting slot 11 is a convex structure, the head of the fixing bolt 3 is slidably placed in the mounting slot 11, and the fixing bolt 3 is connected to the mounting seat 1 through the fixing nut 31, and the cross section of the fixing bolt 3 is inverted and consistent with it, so that the fixing bolt 3 is easy to install in the mounting slot 11, and its position can be adjusted as needed, so that the transverse plate 4 is in a desired position;

[0025] The upper edge of the mounting groove 11 is chamfered to form an arc surface 12. When the shaft 2 is placed on the mounting seat, the outer ring surface of the shaft 2 may contact the edge of the mounting groove 11. The chamfered design can avoid scratches on the surface of the shaft 2 caused by sharp edges.

[0026] An adjustment groove 41 is formed through the upper and lower surfaces of the transverse plate 4, and the screw of the fixing bolt 3 passes through the adjustment groove 41 and is placed above it, and a locking nut 32 is threadedly connected to the top of the transverse plate 4. After the transverse plate 4 is sleeved on the top of the fixing bolt 3 through the adjustment groove 41, the transverse plate 4 contacts the surface of the shaft 2, and then the locking nut 32 is screwed on the fixing bolt 3, so that the transverse plate 4 can be tightly pressed on the shaft 2, thereby fixing the shaft 2.

[0027] The inner surfaces of the two front and rear transverse plates 4 are tightly fitted with the outer surface of the shaft 2, which can limit the forward and backward movement of the shaft 2 and prevent it from moving forward and backward.

[0028] A longitudinal plate 5 is arranged above the transverse plate 4, and two groups of longitudinal rods 6 are arranged above the longitudinal plate 5, and each group of longitudinal rods 6 includes two longitudinal rods 6. The outer ring surfaces of the two longitudinal rods 6 in the same group are in close contact with the outer ring surface of the shaft 2. The longitudinal rods 6 can limit the left and right movement of the shaft 2 so that it cannot move left and right.

[0029] An adjustment groove 2 51 is provided on the upper surface of the longitudinal plate 5, and the longitudinal rod 6 passes through the adjustment groove 2 51 and is placed above it, and a threaded section 61 is provided on the longitudinal rod 6. The longitudinal rod 6 is fixed to the longitudinal plate 5 by a clamping nut 1 62 and a clamping nut 2 63. The longitudinal rod 6 can be fixed to the longitudinal plate 5, and then the left and right sides of the shaft 2 can be limited and fixed, and the longitudinal rod 6 can adjust the spacing as needed, which is suitable for shafts 2 of various sizes and different positions of the shaft 2. At the same time, the height of the longitudinal plate 5 is adjusted as needed, so that the threaded end on the longitudinal rod 6 will not contact the surface of the shaft 2.

[0030] The implementation principle of a shaft 2 type part processing and positioning device for a CNC machine tool in the embodiment of the present application is as follows: the shaft 2 is placed above the mounting seat 1, and the shaft 2 is placed directly above a mounting slot 11, and the outer ring surface of the shaft 2 can contact the arc surface 12 of the mounting slot 11, so that the initial positioning effect can be performed on it, so that it will not shake without the action of external force, and then a plurality of fixing bolts 3 are arranged on the front and rear sides of the shaft 2, so that the fixing bolts 3 are in the required position for fixing the shaft 2, and the fixing nuts 31 are screwed on the fixing bolts 3 to make them tightly fixed to the mounting seat 1 (the transverse plate 4 is in contact with the front and rear side surfaces of the shaft 2 after installation), and then the transverse plate 4 is sleeved onto the plurality of fixing bolts 3 through the adjusting slot 41, and the transverse plate 4 is in contact with the surface of the shaft 2, and then the locking nuts 32 are screwed on the fixing bolts and tightly fit with the transverse plate 4 (such as Figure 1 The installation structure shown in the figure, when tightening the locking bolts, first tighten them on the middle fixing bolt 3, and then tighten them on the fixing bolts 3 on both sides), then we fix the longitudinal plate 5 on top of multiple fixing bolts, and then fix the longitudinal rod 6 on the longitudinal plate 5 through the clamping nut 1 62 and the clamping nut 2 63, and make the longitudinal rod 6 fit tightly on the left and right sides of the shaft 2. When the threaded section 61 of the longitudinal rod 6 will contact the shaft 2, we add up multiple locking nuts 32 together so that the threaded section 61 of the positioning rod will not contact the shaft 2. At this time, the shaft 2 can be fixed, so that the shaft 2 will not move forward, backward, left or right, and the positioning is completed;

[0031] By slidingly setting a plurality of fixing bolts 3 on the mounting seat 1, the transverse plate 4 is tightly pressed on the top of the shaft 2 through the fixing bolts 3, so that the shaft 2 can be fixed, and the height of the transverse plate 4 can be adjusted according to the size in the middle, which is suitable for shafts 2 of various sizes, and can fix multiple shafts 2 at the same time, and the fixing effect is good;

[0032] By arranging transverse plates 4 on the front and rear sides of the shaft 2 and longitudinal rods 6 on the left and right sides of the shaft 2, the shaft 2 can be positioned in the front, rear, left and right directions to prevent it from shaking, thereby improving the stability of the fixation.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A shaft parts processing and positioning device for a CNC machine tool, comprising a mounting seat (1), characterized in that: The mounting seat (1) is formed with a plurality of mounting grooves (11) at equal intervals on both sides of the front and rear sides, and a plurality of fixing bolts (3) are symmetrically mounted on the top of the mounting seat (1) through the mounting grooves (11), and a transverse plate (4) is arranged above the plurality of fixing bolts (3) on the same side through locking nuts (32), the shaft (2) is placed above the mounting seat (1), and the outer ring surface of the shaft (2) is tightly fitted with the lower end surface of the transverse plate (4).

2. A shaft parts processing and positioning device for a CNC machine tool as claimed in claim 1, characterized in that: The cross section of the mounting slot (11) is in a convex shape, the head of the fixing bolt (3) is slidably placed in the mounting slot (11), and the fixing bolt (3) is connected to the mounting seat (1) via a fixing nut (31); The upper edge of the installation slide groove (11) is rounded to form an arc surface (12).

3. The shaft parts processing and positioning device for CNC machine tools according to claim 1, characterized in that: The upper and lower surfaces of the transverse plate (4) are penetrated by an adjustment groove (41), the screw of the fixing bolt (3) passes through the adjustment groove (41) and is placed above it, and a locking nut (32) is threadedly connected to the top of the transverse plate (4).

4. The shaft parts processing and positioning device for CNC machine tools according to claim 1, characterized in that: The inward surfaces of the two front and rear transverse plates (4) are tightly fitted with the outward surface of the shaft (2).

5. The shaft parts processing and positioning device for CNC machine tools according to claim 1, characterized in that: A longitudinal plate (5) is arranged above the transverse plate (4), and two groups of longitudinal rods (6) are arranged above the longitudinal plate (5), and each group of longitudinal rods (6) includes two longitudinal rods (6), and the outer ring surfaces of the two longitudinal rods (6) in the same group are in close contact with the outer ring surface of the shaft (2).

6. A shaft parts processing and positioning device for a CNC machine tool as claimed in claim 5, characterized in that: The upper surface of the longitudinal plate (5) is provided with a second adjustment groove (51), the longitudinal rod (6) passes through the second adjustment groove (51) and is placed above the longitudinal plate (5), and a threaded section (61) is provided on the longitudinal rod (6). The longitudinal rod (6) is fixed to the longitudinal plate (5) by means of a first clamping nut (62) and a second clamping nut (63).

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