Buckle type double-spindle electric spindle

Abstract

The utility model discloses a buckle type double-spindle motorized spindle, which comprises a connecting shaft rotatably arranged on two sides of an end cover, a cutter shaft lever is clamped on one side, far away from the end cover, of the connecting shaft, and a connecting seat is fixedly connected to the end face, close to the cutter shaft lever, of the connecting shaft. When installation is needed, the clamping base connected with the end face of the cutter shaft rod is inserted into the inner surface of the cavity, the protruding block slides on the bevel edge of the inner surface of the cavity, meanwhile, the groove and the convex edge of the inner surface of the cavity form clamping connection, meanwhile, the limiting structure conducts limiting, and therefore clamping connection between the connecting shaft and the cutter shaft rod is completed; the threaded column rotates on the inner surface of the threaded cylinder in a threaded mode, so that the end face of the threaded column makes contact with the inner surface of the limiting groove, the clamping base is extruded to deform, the size formed by the outer side end face of the protruding block is smaller than the size of the bevel edge of the cavity, at the moment, only the cutter shaft rod needs to be pulled out, and disassembly and assembly of the cutter shaft rod are facilitated; therefore, the replacement difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric spindles, and particularly relates to an electric spindle with a snap - type double spindle. Background Technique

[0002] The electric spindle is a technology that integrates the machine tool spindle and the spindle motor in the field of numerical control machine tools. In the processing of some machine tools, according to the use requirements, a double - spindle tool is needed to process workpieces.

[0003] A numerically controlled lathe integrated box - type water - cooled electric spindle with the publication number of CN209006693U in the prior art. It includes a headstock body. An annular groove hole is provided along the axis on one end face of the headstock body, and four water - channel partition ribs one and four water - channel partition ribs two are arranged at intervals in the annular groove hole, dividing the annular groove hole into eight water channels, and the adjacent two water channels are communicated with each other; a front water - blocking cover and a rear water - blocking cover are respectively installed in cooperation at both ports of the headstock body; a rear water - blocking cover water - inlet hole and a rear water - blocking cover water - outlet hole which are communicated with the adjacent two water channels are opened along the axis direction on one end face of the rear water - blocking cover; an O - ring groove one, a front bearing seat cooling water channel and an O - ring groove two are successively arranged from the inside to the outside on the outer side face of the front bearing seat installed in cooperation inside the front end of the headstock body; a water - blocking block is arranged along the axis in the front bearing seat cooling water channel. The water channels of the utility model are wide and the water capacity is large. Except for the water - channel partition ribs, all heat sources of the motor are covered, accelerating heat dissipation.

[0004] In the prior art, the connection between the existing double spindle and the tool shaft rod is generally fixed through a flange connection disc. This method requires the installation of multiple screws, and the installation of multiple screws is not convenient for disassembly and assembly, thus increasing the complexity of disassembly and assembly and increasing the difficulty of replacing the shaft rod tool. Therefore, we propose an electric spindle with a snap - type double spindle to solve the above - mentioned deficiencies. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electric spindle with a snap - type double spindle, which has the purpose of being convenient for disassembly and assembly, thus reducing the replacement difficulty, so as to solve the above - mentioned background - technique problems.

[0006] The technical solution of the present utility model to solve the above technical problems is as follows: An electric spindle with a snap - type double - spindle includes connecting shafts rotatably arranged on both sides of the end cover. On the side of the connecting shaft far from the end cover, a tool shaft rod is snap - connected. On the end face of the connecting shaft close to the tool shaft rod, a connecting seat is fixedly connected. On the top and bottom of the connecting seat, threaded cylinders are fixedly connected in an embedded manner. On the end face of the tool shaft rod close to the connecting shaft, a clamping seat is fixedly connected. On the surface of the clamping seat, there is a groove. On the outer side of the end faces of the clamping seat away from each other, a convex block is fixedly connected. The inner surface of the threaded cylinder is thread - connected with a threaded column. The inner cavity of the connecting seat is provided with a cavity. The inner surface of the cavity is adapted to be snap - connected with the outer surface of the convex block. On the outer surface of the convex block, a limiting groove is provided. One side of the threaded column close to it is closely attached to the inner surface of the limiting groove. A limiting structure for limiting is also provided between the tool shaft rod and the connecting shaft.

[0007] Preferably, the limiting structure includes a limiting rod fixedly connected to the center of the tool shaft rod. On the top and bottom of the surface of the limiting rod, limiting blocks are fixedly connected. On the end face of the connecting shaft close to the tool shaft rod and inside the connecting seat, a through - hole is provided. On the top and bottom of the inner surface of the through - hole, limiting holes adapted to be snap - connected with the limiting blocks are provided.

[0008] Preferably, the end face of the inner surface of the cavity is of an inclined design and is adapted to slide with the convex block. After the convex block slides, the groove is snap - connected with the convex edge of the inner surface of the cavity.

[0009] Preferably, the height of the threaded column is greater than the height of the threaded cylinder. The threaded cylinder is a hollow threaded design and the threaded cylinder penetrates the inner surface of the cavity.

[0010] Preferably, the clamping seat is made of an elastic material, the end face of the limiting groove.

[0011] 1. The beneficial effects of the present utility model are as follows: When installation is required in the present utility model, the clamping seat connected to the end face of the tool shaft rod is inserted into the inner surface of the cavity. The convex block slides on the inclined edge of the inner surface of the cavity. At the same time, the groove is snap - connected with the convex edge of the inner surface of the cavity, and at the same time, the limiting structure is used for limiting, so as to complete the snap - connection between the connecting shaft and the tool shaft rod. When removal is required, the threaded column is rotated to thread - rotate on the inner surface of the threaded cylinder, so that the end face of the threaded column contacts the inner surface of the limiting groove, thereby squeezing the clamping seat to generate deformation, making the size formed by the outer end face of the convex block smaller than the size of the inclined edge of the cavity. At this time, just pull out the tool shaft rod. By setting the above - mentioned structure, the disassembly and assembly of the tool shaft rod are facilitated, thus reducing the difficulty of replacement.

[0012] 2. When the tool shaft rod is inserted into the connecting shaft of the present utility model, the limiting block on the surface of the limiting rod is driven to be inserted into the limiting hole formed on the inner surface of the through hole, forming a matching clamping connection, thereby limiting the positions of the tool shaft rod and the connecting shaft.

[0013] 3. By setting the height of the threaded column to be greater than the height of the threaded barrel in the present utility model, the threaded column rotates a distance to press against the convex block, thereby causing the clamping seat to deform.

[0014] 4. Since the clamping seat of the present utility model is made of an elastic material, it deforms under the action of force, thus facilitating the separation between the convex block and the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Wherein:

[0016] Figure 1 is a schematic diagram of the structure of the present utility model;

[0017] Figure 2 is a partial enlarged view of point A of the present utility model;

[0018] Figure 3 is a partial enlarged view of point B of the present utility model.

[0019] In the drawings, the list of components represented by each reference numeral is as follows:

[0020] 1. End cover; 2. Connecting shaft; 3. Tool shaft rod; 4. Connecting seat; 5. Threaded barrel; 6. Clamping seat; 7. Groove; 8. Convex block; 9. Threaded column; 10. Cavity; 11. Limiting groove; 12. Limiting rod; 13. Limiting block; 14. Through hole; 15. Limiting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Hereinafter, embodiments of the clamping type dual-spindle motorized spindle of the present utility model will be described with reference to the drawings.

[0022] Embodiment 1:

[0023] Figures 1-3The electric spindle with a snap - type double spindle showing an embodiment of the present utility model includes connecting shafts 2 rotatably arranged on both sides of the end cap 1. A tool shaft rod 3 is snap - connected to the side of the connecting shaft 2 away from the end cap 1. A connecting seat 4 is fixedly connected to the end face of the connecting shaft 2 close to the tool shaft rod 3. Threaded cylinders 5 are fixedly connected in an embedded manner at both the top and bottom of the connecting seat 4. A clamping seat 6 is fixedly connected to the end face of the tool shaft rod 3 close to the connecting shaft 2. A groove 7 is provided on the surface of the clamping seat 6. A convex block 8 is fixedly connected to the outer side of the end face of the clamping seat 6 away from each other. A threaded column 9 is thread - connected to the inner surface of the threaded cylinder 5. A cavity 10 is provided in the inner cavity of the connecting seat 4. The inner surface of the cavity 10 is adapted to be snap - connected with the outer surface of the convex block 8. The end face of the inner surface of the cavity 10 is designed to be inclined and is adapted to slide with the convex block 8. After the convex block 8 slides, the groove 7 is snap - connected with the convex edge of the inner surface of the cavity 10. A limiting groove 11 is provided on the outer surface of the convex block 8. The side of the threaded column 9 close to it is in close contact with the inner surface of the limiting groove 11. A limiting structure for limiting is also provided between the tool shaft rod 3 and the connecting shaft 2. The limiting structure includes a limiting rod 12 fixedly connected to the axis of the tool shaft rod 3. Limiting blocks 13 are fixedly connected to both the top and bottom of the surface of the limiting rod 12. A through - hole 14 is provided on the end face of the connecting shaft 2 close to the tool shaft rod 3 and inside the connecting seat 4. Limiting holes 15 for snap - connecting with the limiting blocks 13 are provided at both the top and bottom of the inner surface of the through - hole 14. When the tool shaft rod 3 is inserted into the connecting shaft 2, the limiting blocks 13 on the surface of the limiting rod 12 are driven to be inserted into the limiting holes 15 provided on the inner surface of the through - hole 14 to form an adapted snap - connection, thereby limiting the positions of the tool shaft rod 3 and the connecting shaft 2. When installation is required, the clamping seat 6 connected to the end face of the tool shaft rod 3 is inserted into the inner surface of the cavity 10. The convex block 8 slides on the inclined side of the inner surface of the cavity 10. At the same time, the groove 7 is snap - connected with the convex edge of the inner surface of the cavity 10, and the limiting structure is used for limiting, thus completing the snap - connection between the connecting shaft 2 and the tool shaft rod 3. When removal is required, the threaded column 9 is rotated threadedly on the inner surface of the threaded cylinder 5, so that the end face of the threaded column 9 contacts the inner surface of the limiting groove 11, thereby squeezing the clamping seat 6 to cause deformation, making the size formed by the outer end face of the convex block 8 smaller than the size of the inclined side of the cavity 10. At this time, only the tool shaft rod 3 needs to be pulled out. By setting the above - mentioned structure, the disassembly and assembly of the tool shaft rod are facilitated, thereby reducing the difficulty of replacement.

[0024] Embodiment Two:

[0025] Figures 1-3The electric spindle of the snap - type double - spindle of the present utility model is shown, which includes connecting shafts 2 rotatably arranged on both sides of the end cover 1. A tool shaft rod 3 is snap - connected to the side of the connecting shaft 2 away from the end cover 1. A connecting seat 4 is fixedly connected to the end face of the connecting shaft 2 close to the tool shaft rod 3. Threaded cylinders 5 are embedded and fixedly connected to both the top and bottom of the connecting seat 4. A clamping seat 6 is fixedly connected to the end face of the tool shaft rod 3 close to the connecting shaft 2. The clamping seat 6 is made of elastic material. At the end face of the limiting groove 11, due to the clamping seat 6 being made of elastic material, under the action of force, it deforms, thus facilitating the separation between the convex block 8 and the cavity 10. A groove 7 is provided on the surface of the clamping seat 6. Convex blocks 8 are fixedly connected to the outer sides of the opposite end faces of the clamping seat 6. A threaded column 9 is thread - connected to the inner surface of the threaded cylinder 5. A cavity 10 is provided in the inner cavity of the connecting seat 4. The height of the threaded column 9 is greater than the height of the threaded cylinder 5. The threaded cylinder 5 has a hollow - threaded design and penetrates through the inner surface of the cavity 10. By setting the height of the threaded column 9 to be greater than the height of the threaded cylinder 5, the rotational distance of the threaded column 9 presses against the convex block 8, thus causing the clamping seat 6 to deform. The inner surface of the cavity 10 is adapted to be snap - connected with the outer surface of the convex block 8. A limiting groove 11 is provided on the outer surface of the convex block 8. The side of the threaded column 9 close to it is in close fit with the inner surface of the limiting groove 11.

[0026] Working principle: When installation is required in the present utility model, the clamping seat 6 connected to the end face of the tool shaft rod 3 is inserted into the inner surface of the cavity 10. The convex block 8 slides on the hypotenuse of the inner surface of the cavity 10. At the same time, the groove 7 and the convex edge of the inner surface of the cavity 10 form a snap - connection. When the tool shaft rod 3 is inserted into the connecting shaft 2, the limiting block 13 on the surface of the limiting rod 12 is driven to be inserted into the limiting hole 15 provided on the inner surface of the through - hole 14, forming an adapted snap - connection, thereby limiting the positions of the tool shaft rod 3 and the connecting shaft 2, and thus completing the snap - connection between the connecting shaft 2 and the tool shaft rod 3.

[0027] When removal is required, the threaded column 9 is rotated threadedly on the inner surface of the threaded cylinder 5, so that the end face of the threaded column 9 contacts the inner surface of the limiting groove 11, thereby squeezing the clamping seat 6 to deform, making the size formed by the outer end face of the convex block 8 smaller than the size of the hypotenuse of the cavity 10. At this time, just pull out the tool shaft rod 3.

Claims

1. An electric spindle with a snap - type double spindle, comprising connecting shafts (2) rotatably arranged on both sides of an end cover (1), characterized in that, On one side of the connecting shaft (2) away from the end cover (1), a tool shaft rod (3) is snap-connected. On the end face of the connecting shaft (2) close to the tool shaft rod (3), a connecting seat (4) is fixedly connected. On the top and bottom of the connecting seat (4), threaded cylinders (5) are fixedly connected in an embedded manner. On one end face of the tool shaft rod (3) close to the connecting shaft (2), a clamping seat (6) is fixedly connected. On the surface of the clamping seat (6), a groove (7) is formed. On the outer side of the end face of the clamping seat (6) away from each other, a convex block (8) is fixedly connected. The inner surface of the threaded cylinder (5) is threadedly connected with a threaded post (9). In the inner cavity of the connecting seat (4), a cavity (10) is formed. The inner surface of the cavity (10) is adapted to be snap-connected with the outer surface of the convex block (8). On the outer surface of the convex block (8), a limiting groove (11) is formed. The side of the threaded post (9) close to it is in close fit with the inner surface of the limiting groove (11). A limiting structure for limiting is further arranged between the tool shaft rod (3) and the connecting shaft (2); The limiting structure includes a limiting rod (12) fixedly connected to the center of the tool shaft rod (3). On the top and bottom of the surface of the limiting rod (12), limiting blocks (13) are fixedly connected. On the end face of the connecting shaft (2) close to the tool shaft rod (3) and inside the connecting seat (4), a through hole (14) is formed. On the top and bottom of the inner surface of the through hole (14), limiting holes (15) adapted to be snap-connected with the limiting blocks (13) are formed; The end face of the inner surface of the cavity (10) is designed to be inclined and is adapted to slide with the convex block (8). After the convex block (8) slides, the groove (7) is snap-connected with the convex edge on the inner surface of the cavity (10).

2. The electric spindle with a snap - type double spindle according to claim 1, characterized in that, The height of the threaded post (9) is greater than the height of the threaded cylinder (5). The threaded cylinder (5) is designed with a hollow thread, and the threaded cylinder (5) penetrates through the inner surface of the cavity (10).

3. The electric spindle with a snap - type double spindle according to claim 1, characterized in that, The clamping seat (6) is made of an elastic material, the end face of the limiting groove (11).

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