Replacement structure of grinding machine main shaft knife rest

Abstract

The utility model relates to a replacement structure of a grinding machine main shaft knife rest, which belongs to the technical field of grinding machines, and aims to solve the problems that the efficiency is low and the labor intensity of operators is increased when screws and nuts are used for fastening, and comprises a grinding machine headstock, a main shaft is rotatably mounted on the grinding machine headstock, and a lantern ring is sleeved on the outer side of the main shaft; a lantern ring is arranged on the main shaft, a clamping groove is formed in the position, below the lantern ring, of the main shaft, a ball is movably connected into the lantern ring, a threaded groove is formed in the lantern ring, a moving part is arranged on the outer side of the lantern ring in a sleeving mode, a limiting ring is fixedly connected to the side edge of the moving part, and a sliding groove is formed in the end, away from the limiting ring, of the moving part. The spindle tool rest can be quickly connected and separated, the time for replacing the tool or the tool rest is shortened, the production efficiency is improved, secondary fixing can be carried out, the stability of the tool rest in the machining process is further enhanced, and it is guaranteed that the tool is always kept in the stable cutting state in the machining process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grinding machine, concretely to a replacement structure of grinding machine spindle tool rest. BACKGROUND

[0002] The grinding machine is a kind of machine tool that uses grinding tool to carry out grinding on workpiece surface, is initially installed on the machine tool such as lathe, planer etc., along with the development of industry, the type and performance of grinding machine are continuously improved, become the important equipment indispensable in mechanical manufacturing industry, in the working process of grinding machine, grinding machine spindle as one of core components, bears the key task such as transmission torque and rotational speed, support grinding tool etc., but, along with the increasing processing demand, the existing grinding machine spindle tool rest gradually shows some deficiencies in replacement structure.

[0003] However, the existing grinding machine spindle tool rest has the following problems when in use:

[0004] In the machining process of the existing grinding machine, the commonly used way is to directly sleeve the cutter holder on the machine tool spindle, and then fasten it by screws and nuts. However, this traditional fastening method not only has low efficiency and increases the labor intensity of the operator, but also is particularly inconvenient when disassembling or replacing the cutter holder, affecting the production efficiency and flexibility.

[0005] Therefore, we propose a replacement structure of grinding machine spindle tool rest to solve the problems mentioned above. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a replacement structure of grinding machine spindle tool rest to solve the problem that the grinding machine on the market currently adopts the way of directly sleeving the cutter holder on the machine tool spindle and then fastening it by screws and nuts in the machining process. However, this traditional fastening method not only has low efficiency and increases the labor intensity of the operator, but also is particularly inconvenient when disassembling or replacing the cutter holder, affecting the production efficiency and flexibility.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a replacement structure of grinding machine spindle tool rest, comprising grinding headstock, the grinding headstock is rotatably installed with spindle;

[0008] Further comprising:

[0009] The sleeve ring is sleeved outside the spindle, a clamping groove is formed in the spindle below the sleeve ring, a ball is movably connected in the sleeve ring, a threaded groove is formed in the sleeve ring, a moving piece is sleeved outside the sleeve ring, a limiting ring is fixedly connected to the side edge of the moving piece, a sliding groove is formed in the end of the moving piece away from the limiting ring, a sliding block is slidably connected in the sliding groove, and a piston rod is fixedly connected to the side edge of the sliding block.

[0010] The end of the sleeve away from the main shaft is fixedly connected with a tool holder, the tool holder is fixedly connected with a piston cylinder, and the piston cylinder is slidably connected with a piston sheet, and the side wall of the tool holder is fixedly connected with a anti-dropping suction cup.

[0011] Preferably, the clamping grooves and the balls correspond to each other, and the clamping grooves and the balls are arranged in a circumferential array of four about the center point of the sleeve, and the sizes of the clamping grooves and the balls match.

[0012] Preferably, the moving part is arranged in a circular ring structure, is engaged with the threaded groove, and the limiting ring at the side edge of the moving part is attached to the ball.

[0013] Preferably, the piston rod corresponds to the piston cylinder, and the end of the piston rod away from the sliding block penetrates into the piston cylinder and is fixedly connected with the piston sheet.

[0014] Preferably, the piston cylinder, the piston sheet and the piston rod are arranged in a circumferential array of four about the center point of the sleeve, and the piston cylinder is connected in communication with the anti-dropping suction cup through a pipeline.

[0015] Preferably, the anti-dropping suction cup is arranged in the sleeve, and the end of the anti-dropping suction cup is flush with the side wall of the main shaft.

[0016] Compared with the prior art, the beneficial effects of the utility model are that the replacement structure of the grinder spindle tool holder can realize quick connection and separation of the spindle tool holder, shorten the time for replacing tools or tool holders, improve production efficiency, and can be fixed again, further enhance the stability of the tool holder in the machining process, ensure that the tool always maintains a stable cutting state in the machining process, and the specific content is as follows:

[0017] 1. The ball and the limiting ring are arranged, when the tool holder is installed, the ball on the sleeve is aligned with the clamping groove, then the moving part is rotated to engage the moving part with the threaded groove, thereby moving the limiting ring to make the limiting ring move above the ball, limiting the ball, making it close to the clamping groove, thereby completing the installation of the tool holder, which is simple in operation and improves the installation efficiency.

[0018] 2. The piston rod, the piston cylinder and the piston sheet are arranged, the piston rod is moved during the forward movement of the moving part, then the piston rod drives the piston sheet to move in the piston cylinder, thereby using the pipeline to suck the air in the anti-dropping suction cup, so that the anti-dropping suction cup generates negative pressure and is adsorbed with the main shaft, thereby the tool holder is fastened again, effectively resisting the vibration and impact generated in the cutting process, and improving the stability of the connection. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view after the utility model is installed.

[0020] Figure 2 It is the schematic diagram of the whole structure of the main shaft of the utility model;

[0021] Figure 3 It is the schematic diagram of the ball mounting structure of the utility model;

[0022] Figure 4 It is the schematic diagram of the main section structure of the utility model;

[0023] Figure 5 It is the schematic diagram of the main section structure of the utility model Figure 4 It is the schematic diagram of the enlarged structure at A in the middle.

[0024] In the figure: 1, grinding machine headstock; 2, main shaft; 3, collar; 4, clamping groove; 5, ball; 6, thread groove; 7, moving part; 8, sliding slot; 9, sliding block; 10, tool holder; 11, piston rod; 12, piston cylinder; 13, piston sheet; 14, limiting ring; 15, anti-dropping chuck. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Embodiment one: please refer to Figures 1-5 The utility model provides a technical scheme: a grinding machine main shaft tool holder replacement structure, including grinding machine headstock 1, grinding machine headstock 1 is rotatably installed with main shaft 2.

[0027] The technical scheme utilizes the setting of grinding machine headstock 1 and main shaft 2, and in use, grinding machine headstock 1 is placed on the designated mounting position of the grinding machine main body device first, and grinding machine headstock 1 is accurately positioned and aligned using special tools or positioning devices, so that the axis can be kept highly consistent with the axis of the grinding machine main body.

[0028] Embodiment two: the technical content disclosed in the embodiment is an improvement based on the above-mentioned embodiment one. In the machining process of the existing grinding machine, the commonly used mode is to directly sleeve tool holder 10 on the machine tool main shaft, and then fasten through screws and nuts. However, this traditional fastening mode is not only low in efficiency, increases the labor intensity of the operator, but also is particularly inconvenient when tool holder 10 needs to be disassembled or replaced, which affects the production efficiency and flexibility. The technical scheme is as follows Figures 1-3As shown in the figure, the connecting assembly of the main shaft tool rest is disclosed, which is provided with a sleeve ring 3 sleeved outside the main shaft 2, and a clamping groove 4 is arranged on the main shaft 2 below the sleeve ring 3, a ball 5 is movably connected in the sleeve ring 3, a threaded groove 6 is arranged on the sleeve ring 3, and a moving piece 7 is sleeved outside the sleeve ring 3, the moving piece 7 is fixedly connected with a limiting ring 14 at the side edge, the clamping groove 4 and the ball 5 correspond to each other, and the clamping groove 4 and the ball 5 are both arranged in a circumferential array of four about the center point of the sleeve ring 3, and the size of the clamping groove 4 and the ball 5 is matched, the moving piece 7 is arranged in a circular ring structure, the moving piece 7 is engaged with the threaded groove 6, and the limiting ring 14 at the side edge of the moving piece 7 is attached to the ball 5.

[0029] As shown in the figure, Figure 1 the clamping groove 4 and the ball 5 are arranged, and since the ball 5 is matched with the clamping groove 4, when the sleeve ring 3 is sleeved outside the main shaft 2, the ball 5 is aligned with the clamping groove 4, and the limiting ring 14 is arranged to press the ball 5 and the clamping groove 4 tightly, so that the sleeve ring 3 and the main shaft 2 are quickly connected, the installation and disassembly process is simplified, and the work efficiency is improved.

[0030] As shown in the figure, Figure 2 and Figure 3 first, the limiting ring 14 on the moving piece 7 is not in contact with the ball 5 in the initial state, so that the ball 5 can move in the sleeve ring 3, when installing the tool rest 10, the sleeve ring 3 of the moving piece 7 is sleeved outside the main shaft 2, so that the anti-dropping suction cup 15 is attached to one end of the main shaft 2, at this time the ball 5 is aligned with the clamping groove 4, and the moving piece 7 is further rotated, since the moving piece 7 is engaged with the threaded groove 6, during rotation, the moving piece 7 will drive the limiting ring 14 to move, the limiting ring 14 will gradually approach the ball 5, and press the ball 5 when attached to the upper surface of the ball 5, so that it is tightly attached to the clamping groove 4, thereby completing the fixation of the tool rest 10.

[0031] In the embodiment, the technical content disclosed is further improved on the basis of the above-mentioned embodiment one and embodiment two, and it is possible that only one fixation cannot ensure that the tool rest 10 maintains a stable position and posture during a long-time and high-intensity machining process, in order to further solve this technical problem, the technical solution is as shown in the figure, Figure 4 and Figure 5As shown in the figure, the secondary fixing assembly of the main shaft tool rest is disclosed, the moving part 7 is provided with a sliding groove 8 at one end away from the limiting ring 14, a sliding block 9 is slidably connected in the sliding groove 8, a piston rod 11 is fixedly connected to the side edge of the sliding block 9, the tool rest 10 is fixedly connected to one end of the sleeve ring 3 away from the main shaft 2, the piston cylinder 12 is fixedly connected to the tool rest 10, the piston sheet 13 is slidably connected in the piston cylinder 12, the anti-dropping suction cup 15 is fixedly connected to the side wall of the tool rest 10, the piston rod 11 corresponds to the piston cylinder 12, one end of the piston rod 11 away from the sliding block 9 penetrates into the piston cylinder 12 and is fixedly connected with the piston sheet 13, the piston cylinder 12, the piston sheet 13 and the piston rod 11 are circumferentially arranged in four about the center point of the sleeve ring 3, the piston cylinder 12 is connected with the anti-dropping suction cup 15 through a pipeline, the anti-dropping suction cup 15 is arranged in the sleeve ring 3, and one end of the anti-dropping suction cup 15 is flush with the side wall of the main shaft 2.

[0032] As shown in the figure, Figure 4 By arranging the anti-dropping suction cup 15, the moving part 7 can pull the piston rod 11 to move synchronously at a certain time, the piston rod 11 can drive the piston sheet 13 to move, thereby sucking the air in the anti-dropping suction cup 15, so that the negative pressure is generated in the anti-dropping suction cup 15, and the stability and safety of the tool rest 10 during operation are improved.

[0033] As shown in the figure, Figure 4 and Figure 5 Firstly, the sliding block 9 will slide in the sliding groove 8 during the movement of the moving part 7, and the sliding block 9 will drive the piston rod 11 to move along with the movement of the moving part 7, since the anti-dropping suction cup 15 is attached to the main shaft 2, the piston sheet 13 will slide in the piston cylinder 12 when the piston rod 11 moves, thereby sucking the air in the anti-dropping suction cup 15 through the pipeline, so that the anti-dropping suction cup 15 is adsorbed to the main shaft 2 for secondary fixing.

[0034] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A grinding machine spindle tool rest replacement structure, comprising a grinding machine headstock (1), a spindle (2) is rotatably mounted on the grinding machine headstock (1); characterized in that Further comprising: The outer side of the spindle (2) is sleeved with a collar (3), and a clamping groove (4) is formed in the spindle (2) below the collar (3); the collar (3) is movably connected with a ball (5) inside, and a threaded groove (6) is formed in the collar (3); the outer side of the collar (3) is sleeved with a moving piece (7), the side edge of the moving piece (7) is fixedly connected with a limiting ring (14), and the end of the moving piece (7) away from the limiting ring (14) is provided with a sliding groove (8); the sliding groove (8) is slidably connected with a sliding block (9), and the side edge of the sliding block (9) is fixedly connected with a piston rod (11); The end of the collar (3) away from the spindle (2) is fixedly connected with a tool rest (10), the tool rest (10) is fixedly connected with a piston cylinder (12), and the piston cylinder (12) is slidably connected with a piston sheet (13); the side wall of the tool rest (10) is fixedly connected with an anti-dropping suction cup (15).

2. The grinding machine spindle cartridge replacement structure according to claim 1, characterized in that: The clamping groove (4) and the ball (5) correspond to each other, and the clamping groove (4) and the ball (5) are both arranged in a circumferential array of four about the center point of the collar (3), and the size of the clamping groove (4) and the ball (5) is matched.

3. The replacement structure of the grinder spindle rest according to claim 1, characterized in that: The moving piece (7) is arranged in a circular ring structure, the moving piece (7) is engaged with the threaded groove (6), and the limiting ring (14) on the side edge of the moving piece (7) is attached to the ball (5).

4. The replacement structure of the grinder spindle rest according to claim 1, characterized in that: The piston rod (11) corresponds to the piston cylinder (12), and the end of the piston rod (11) away from the sliding block (9) penetrates into the piston cylinder (12) and is fixedly connected with the piston sheet (13).

5. The replacement structure of the grinder spindle rest according to claim 4, characterized in that: The piston cylinder (12), the piston sheet (13) and the piston rod (11) are all arranged in a circumferential array of four about the center point of the collar (3), and the piston cylinder (12) is connected with the anti-dropping suction cup (15) through a pipeline.

6. The replacement structure of a grinder spindle rest according to claim 5, characterized in that: The anti-dropping suction cup (15) is arranged in the collar (3), and one end of the anti-dropping suction cup (15) is flush with the side wall of the spindle (2).

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