Feeding mechanism of sharpening machine

Abstract

A feeding mechanism of a sharpening machine belongs to the technical field of drill bit grinding auxiliary equipment and comprises a cavity seat with a driving structure, a sliding table is slidably mounted in the cavity seat, a stand column is fixedly mounted on the upper surface of the sliding table, a reducing sleeve is rotatably mounted on the upper surface of the stand column, a U-shaped block is rotatably mounted above the reducing sleeve, and a V-shaped frame is fixedly mounted on the upper surface of the U-shaped block. A pressing mechanism is fixedly installed on the upper surface of the V-shaped frame, a positioning mechanism is fixedly installed at the left end of the V-shaped frame, and an angle adjusting mechanism is installed between the lower surface of the left end of the V-shaped frame and the left surface of the reducing sleeve. Therefore, the feeding angle is positioned when the drill bit is polished, and the problems that the sharpening angle needs to be adjusted through manual repeated calibration, and operation is inconvenient are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drill bit polishing auxiliary equipment technical field, specifically relates to a kind of feeding mechanism of point grinder. BACKGROUND

[0002] In the field of metal cutting, the geometric precision of drill bit directly affects the cutting performance and machining quality, and the precision of drill point angle is a key parameter determining the cutting performance of drill bit.

[0003] Through retrieval, in the related field, the prior art with publication number CN215659704U and patent name Drilling tool processing bracket There is a fixed bearing structure, although the positioning and clamping functions of drill bit are realized by modular design, the head polishing work of drill bit can be met to some extent, but it does not set the rotatable adjusting axial positioning mechanism, so that the point angle adjustment needs to rely on manual repeated calibration, which cannot meet the process requirements of drill point angle in different processing scenes, in addition, although the clamping jaw V can ensure the circumferential positioning of drill bit, it lacks axial compensation device, and the positioning deviation is easy to occur in the grinding process due to vibration, which directly affects the symmetry of drill point and the accuracy of relief angle, therefore, the feeding mechanism of point grinder is provided to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of feeding mechanism of point grinder to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of feeding mechanism of point grinder, including cavity seat with driving structure, slidingly installed in the cavity seat is sliding table, the upper surface of the sliding table is fixedly installed with stand, the upper surface of the stand is rotatably installed with adapter sleeve, the upper surface of the adapter sleeve is rotatably installed with U-shaped block, the upper surface of the U-shaped block is fixedly installed with V-shaped frame, the upper surface of the V-shaped frame is fixedly installed with pressure mechanism, the left end of the V-shaped frame is fixedly installed with positioning mechanism, and angle adjusting mechanism is installed between the left end lower surface of V-shaped frame and the left surface of adapter sleeve, the angle adjusting mechanism includes adapter seat A, the adapter seat A is fixedly installed on the left end lower surface of V-shaped frame, and screw rod is rotatably installed in the adapter seat A, the outer surface of the screw rod is screw-connected with operating frame, the end of the operating frame away from the screw rod is rotatably installed with connecting seat, the end of the connecting seat away from the operating frame is rotatably installed with adapter seat B, and the adapter seat B is fixedly installed on the left surface of adapter sleeve.

[0007] In the above technical scheme, the receiving upper surface of the adapter sleeve is fixedly installed with adapter block, and the adapter block is rotatably connected with the U-shaped block through the shaft.

[0008] In the technical scheme, the front surface of the adapter sleeve is provided with a clamping bolt which is screwed and installed, the inner end of the clamping bolt is attached to the outer surface of the column, and the outer end of the clamping bolt is fixedly provided with an operation handle.

[0009] In the technical scheme, the pressing mechanism includes a U-shaped frame which is fixedly installed on the upper surface of the V-shaped frame, and a clamping screw A which is screwed and installed on the upper surface of the U-shaped frame.

[0010] In the technical scheme, the positioning mechanism includes two nuts A which are fixedly installed in the V-shaped frame, and a clamping screw B which is screwed and installed between the two nuts A.

[0011] In the technical scheme, the sliding table is in an inverted U shape, the upper surface of the column is provided with a through hole, the through hole is connected with the inner cavity of the sliding table, the lower surface of the adapter sleeve is fixedly provided with a round rod at the center, the lower end of the round rod passes through the through hole, and the lower end of the round rod is screwed and installed with a nut B.

[0012] In the technical scheme, the driving structure of the cavity seat includes an adjusting motor which is fixedly installed on the left surface of the cavity seat and an adjusting screw which is rotatably installed in the cavity seat, the output end of the adjusting motor is fixedly connected with the left end of the adjusting screw, and the adjusting screw is screwed with the sliding table.

[0013] Compared with the prior art, the feeding mechanism of the point sharpening machine has the beneficial effects that:

[0014] The V-shaped frame and the adapter sleeve can be changed in the angle by the cooperation of the threaded rod and the operation frame, so that the feeding angle during the grinding of the drill bit can be positioned, the problem that the point angle adjustment needs to rely on manual repeated calibration and is inconvenient to operate is avoided, in addition, the pressing mechanism composed of the U-shaped frame and the clamping screw A and the positioning mechanism composed of the nut A and the clamping screw B can be used to form a two-way clamping effect on the drill bit placed in the V-shaped frame, so that the drill bit is prevented from being deviated in positioning due to vibration during the grinding process, and the grinding precision of the drill bit is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is a three-dimensional structure schematic view of the utility model. Figure 1 It is a local structure enlarged view of a position a.

[0017] Figure 3 It is a column cross section structure schematic view of the utility model.

[0018] Figure 4 It is an adapter sleeve cross section structure schematic view of the utility model.

[0019] Figures 1-4 In the middle, wherein: 1, cavity seat; 2, sliding table; 3, column; 31, through hole; 4, adapter sleeve; 41, adapter block; 42, abutting bolt; 43, operating handle; 44, round rod; 45, nut B; 5, U-shaped block; 6, V-shaped frame; 7, pressing mechanism; 71, U-shaped frame; 72, abutting screw A; 8, positioning mechanism; 81, nut A; 82, abutting screw B; 9, angle adjusting mechanism; 91, adapter seat A; 92, threaded rod; 93, operating frame; 94, connecting seat; 95, adapter seat B. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] The front, rear, left, right, top and bottom in the embodiments are described with reference to the base surface. Figure 1 The present application provides a technical solution: Figures 1-4

[0022] A feeding mechanism of a point sharpening machine, comprising a cavity seat 1 with a driving structure, a sliding table 2 is slidingly installed in the cavity seat 1, a column 3 is fixedly installed on the upper surface of the sliding table 2, an adapter sleeve 4 is rotatably installed on the upper surface of the column 3, a U-shaped block 5 is rotatably installed above the adapter sleeve 4, a V-shaped frame 6 is fixedly installed on the upper surface of the U-shaped block 5, a pressing mechanism 7 is fixedly installed on the upper surface of the V-shaped frame 6, a positioning mechanism 8 is fixedly installed on the left end of the V-shaped frame 6, and an angle adjusting mechanism 9 is installed between the left end lower surface of the V-shaped frame 6 and the left surface of the adapter sleeve 4, the angle adjusting mechanism 9 comprises an adapter seat A 91, the adapter seat A 91 is fixedly installed on the left end lower surface of the V-shaped frame 6, a threaded rod 92 is rotatably installed in the adapter seat A 91, an operating frame 93 is screw-connectedly installed on the outer surface of the threaded rod 92, a connecting seat 94 is rotatably installed on the end of the operating frame 93 away from the threaded rod 92, an adapter seat B 95 is rotatably installed on the end of the connecting seat 94 away from the operating frame 93, and the adapter seat B 95 is fixedly installed on the left surface of the adapter sleeve 4.

[0023] In combination with Figure 1 and Figure 2 ​As shown, by manually rotating the threaded rod 92, the driving operation frame 93 moves axially along the threaded rod 92, and then through the linkage of the connecting seat 94 and the adapter seat B 95, the support length between the V-shaped frame 6 and the adapter sleeve 4 is changed. This mechanical transmission can realize the angular deflection of the V-shaped frame 6 around the axis of the column 3, and maintain the adjusted angle fixed by the self-locking property of the threaded pair. This rigid adjustment method replaces the traditional manual visual calibration, which can accurately control the grinding angle of the workpiece (such as the rear angle processing requirement of a twist drill), and effectively solves the problem of deviation caused by vibration or external force after angle adjustment.

[0024] As shown in Figure 1 , the adapter block 41 is fixedly installed on the receiving upper surface of the adapter sleeve 4, and the adapter block 41 and the U-shaped block 5 are connected by a rotating shaft, so as to realize the rotating connection between the U-shaped block 5 and the adapter sleeve 4.

[0025] As shown in Figure 3 and Figure 4 , the front surface of the adapter sleeve 4 is penetrated and screwed with the abutting bolt 42, the inner side end of the abutting bolt 42 is in contact with the outer surface of the column 3, and the outer side end of the abutting bolt 42 is fixedly installed with the operation handle 43. By rotating the abutting bolt 42 through the operation handle 43, the abutting bolt 42 can be screwed with the outer surface of the column 3 to lock and fix the adapter sleeve 4.

[0026] As shown in Figure 1 , the pressing mechanism 7 includes a U-shaped frame 71 fixedly installed on the upper surface of the V-shaped frame 6, and an abutting screw A 72 screwed through the upper surface of the U-shaped frame 71. After the drill is placed in the V-shaped frame 6, the abutting screw A 72 is tightened to apply downward pressure to the drill, thereby clamping the drill in the V-shaped frame 6.

[0027] As shown in Figure 1 , the positioning mechanism 8 includes two nuts A 81 fixedly installed in the V-shaped frame 6, and an abutting screw B 82 screwed between the two nuts A 81. After rotating the abutting screw B 82, the left end of the drill placed in the V-shaped frame 6 is tightly abutted, which can prevent the drill from transmitting to the left side during sharpening, affecting the polishing precision.

[0028] In addition, in order to improve the stability of the adapter sleeve 4 during rotation, in combination with Figure 3 and Figure 4As shown, the sliding table 2 is inverted U-shaped, the upper surface of the stand column 3 is provided with a through hole 31, the through hole 31 is communicated with the inner cavity of the sliding table 2, the lower end of the circular rod 44 is screwed with the nut B45, the circular rod 44 has a certain length and rigidity, and after being fixedly connected with the adapter sleeve 4, the inertia moment of the adapter sleeve 4 during rotation can be increased, so that the rotating state of the adapter sleeve 4 is not easily changed when being interfered by external force, thereby the stability during rotation adjustment and the anti-interference ability are improved, and the tightness of the whole connecting structure can be adjusted by adjusting the tightening degree of the nut B45, so as to adapt to different working conditions and rotation requirements, and further optimize the rotation stability.

[0029] Finally, it should be pointed out that the driving structure of the cavity seat 1 comprises an adjusting motor fixedly installed on the left surface of the cavity seat 1 and an adjusting screw rod rotatably installed in the cavity seat 1, the output end of the adjusting motor is fixedly connected with the left end of the adjusting screw rod, and the adjusting screw rod is threadedly connected with the sliding table 2; the adjusting motor is a precision forward-reverse motor, which can pre-control the frequency and rotating speed of work through a PLC programming controller, so as to accurately control the adjusting screw rod to drive the sliding table 2 to accurately displace; and the adjusting motor can drive the sliding table 2 to move towards the point grinding machine through the adjusting screw rod, so that the drill bit is in contact with the grinding disc of the point grinding machine to perform the point grinding work.

[0030] Working principle: in use, the cavity seat 1 is fixedly installed at a proper position in front of the equipment frame of the point grinding machine, then the drill bit to be ground is inserted into the V-shaped frame 6 and the tail of the drill bit is abutted against the positioning mechanism 8, then the drill bit is pressed and abutted by the pressing mechanism 7, at this time, the drill bit is bidirectionally positioned to ensure the stability during grinding, then the V-shaped frame 6 and the drill bit are changed to a suitable direction by rotating the adapter sleeve 4, the abutting bolt 42 is rotated by the operation handle 43 to abut against the outer surface of the stand column 3 to fix the adapter sleeve 4, then the angle of the grinding angle is adjusted by rotating the operation frame 93 manually, the support position of the V-shaped frame 6 is changed by the screw thread cooperation between the operation frame 93 and the screw rod 92, so that the included angle between the V-shaped frame 6 and the stand column 3 is adjusted, thereby the grinding inclination angle of the drill bit is adjusted, when the direction of the drill bit is adjusted to the feeding position, finally the drill bit is fed to the grinding disc of the point grinding machine by the driving structure in the cavity seat 1 to contact, so that the grinding work of the drill bit head is completed. Compared with the prior art, the feeding angle of the drill bit during grinding can be positioned, the point grinding angle adjustment does not need to rely on manual repeated calibration, the operation is convenient, the drill bit placed in the V-shaped frame 6 is bidirectionally clamped by the positioning mechanism 8 and the pressing mechanism 7, the drill bit is prevented from being deviated due to vibration during grinding, and the grinding precision of the drill bit is ensured.

Claims

1. A feeding mechanism for a grinding mill, comprising a cavity seat (1) with a driving structure, characterized in that, A slide table (2) is slidably installed inside the cavity seat (1). A column (3) is fixedly installed on the upper surface of the slide table (2). An adapter sleeve (4) is rotatably installed on the upper surface of the column (3). A U-shaped block (5) is rotatably installed above the adapter sleeve (4). A V-shaped frame (6) is fixedly installed on the upper surface of the U-shaped block (5). A pressing mechanism (7) is fixedly installed on the upper surface of the V-shaped frame (6). A positioning mechanism (8) is fixedly installed on the left end of the V-shaped frame (6). An angle adjustment mechanism (9) is installed between the lower surface of the left end of the V-shaped frame (6) and the left surface of the adapter sleeve (4). The angle adjustment mechanism (9) includes an adapter A (91), which is fixedly installed on the lower left end of the V-shaped frame (6). A threaded rod (92) is rotatably installed inside the adapter A (91). An operating frame (93) is screwed onto the outer surface of the threaded rod (92). A connecting seat (94) is rotatably installed at the end of the operating frame (93) away from the threaded rod (92). An adapter B (95) is rotatably installed at the end of the connecting seat (94) away from the operating frame (93). The adapter B (95) is fixedly installed on the left surface of the adapter sleeve (4).

2. The feeding mechanism of a grinding mill according to claim 1, characterized in that, The adapter sleeve (4) has an adapter block (41) fixedly installed on its upper surface. The adapter block (41) and the U-shaped block (5) are rotatably connected by a rotating shaft.

3. The feeding mechanism of a grinding mill according to claim 2, characterized in that, The front surface of the adapter sleeve (4) is threaded with a tightening bolt (42), the inner end of the tightening bolt (42) is in contact with the outer surface of the column (3), and the outer end of the tightening bolt (42) is fixedly installed with an operating handle (43).

4. The feeding mechanism of a grinding mill according to claim 1, characterized in that, The clamping mechanism (7) includes a U-shaped frame (71) fixedly installed on the upper surface of the V-shaped frame (6), and a clamping screw A (72) is threaded through the upper surface of the U-shaped frame (71).

5. The feeding mechanism of a grinding mill according to claim 1, characterized in that, The positioning mechanism (8) includes two nuts A (81) fixedly installed in the V-shaped frame (6), and a clamping screw B (82) is screwed between the two nuts A (81).

6. The feeding mechanism of a grinding mill according to claim 1, characterized in that, The slide (2) is inverted U-shaped. The upper surface of the column (3) is provided with a through hole (31). The through hole (31) is connected to the inner cavity of the slide (2). A round rod (44) is fixedly installed at the center of the lower surface of the adapter sleeve (4). The lower end of the round rod (44) passes through the through hole (31), and a nut B (45) is screwed onto the lower end of the round rod (44).

7. The feeding mechanism of a grinding mill according to claim 1, characterized in that, The driving structure of the cavity seat (1) includes an adjustment motor fixedly installed on the left surface of the cavity seat (1) and an adjustment screw rotatably installed inside the cavity seat (1). The output end of the adjustment motor is fixedly connected to the left end of the adjustment screw, and the adjustment screw is threadedly connected to the slide (2).

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