Lathe fixing device for elastic drum machining

Abstract

The invention discloses a lathe fixing device for elastic drum machining. The lathe fixing device comprises a lathe main body; the triangular chuck is arranged at one end of the inner side of the lathe main body; the number of the clamping jaws is three, and the chip prevention assembly is movably arranged on one side of the triangular chuck and is arranged on one side of the triangular chuck; and the auxiliary fixing mechanism is arranged on the outer side of the triangular chuck. According to the lathe fixing device for elastic drum machining, by arranging the auxiliary fixing mechanism, a clamping plate and a rubber plate can be arranged on one side of a clamping jaw, the inner side of an elastic drum is fixed through the clamping plate and the rubber plate, and the outer wall of the elastic drum can be tightly attached and fixed; the elastic drum can be prevented from deforming due to too large pre-tightening force or loosening due to too small pre-tightening force in the machining process, the fixing range of the elastic drum can be widened by arranging the pressing plate, the fixing effect is improved, and the stability and machining precision of the elastic drum in the machining process are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of magazine drum processing, in particular to a lathe fixing device used for magazine drum processing. Background Art

[0002] The drum is usually a cylindrical structure. It consists of a drum body, a bullet-receiving plate, a spring (or spring), and other parts. The drum body is used to hold ammunition, and its outer shell is generally made of metal, with a certain strength and sealing to protect the internal ammunition from the external environment. The outer shell of the drum is usually processed by a lathe, including external circle processing, internal hole processing, end surface processing, and thread processing (if any);

[0003] Traditional lathe fixing devices are often rigid and cannot stably fix workpieces such as magazine drums that have certain dimensional tolerances or irregular surfaces. In addition, the preload force of the magazine drum is difficult to control. It is easy for it to be too large to cause deformation of the magazine drum or too small to cause loosening during processing. During the processing, the cutting of the magazine drum will enter the triangular chuck, thereby affecting the movement of the claws and making cleaning complicated. Summary of the invention

[0004] The object of the present invention is to provide a lathe fixing device for processing a drum magazine, so as to solve the problems in the above-mentioned background technology that a workpiece such as a drum magazine which may have a certain dimensional tolerance or an irregular surface cannot be stably fixed, and the pre-tightening force of the drum magazine is difficult to control, and it is easy to be too large to cause deformation of the drum magazine or too small to cause looseness during processing.

[0005] To achieve the above object, the present invention provides the following technical solution: a lathe fixing device for drum processing, comprising:

[0006] Lathe body;

[0007] A triangular chuck is arranged at one end of the inner side of the lathe body;

[0008] Clamping jaws, the number of which is three and which are movably arranged on one side of the triangular chuck;

[0009] A chip prevention component, arranged on one side of the triangular chuck;

[0010] The auxiliary fixing mechanism is arranged on the outer side of the triangular chuck.

[0011] Preferably, the chip-proof component includes: a baffle plate detachably arranged on one side of the triangular chuck by screws; an insertion plate, a plurality of slots are circumferentially formed on the outer side of the baffle plate, and the slots communicate with the inner cavity of the baffle plate. The inner cavity of the slot is inserted with an insertion plate, and one end of the insertion plate extends into the slot, and the inner side of the claw contacts one side of the insertion plate; a slider, chutes are formed on both the left and right sides of the inner cavity of the slot, and the inner cavity of the chute is inserted with a slider, and one side of the slider is fixedly connected to the insertion plate; a guide rod fixedly arranged in the inner cavity of the chute, and the guide rod is adaptively inserted with the slider; a first spring fixedly arranged between the slider and the inner cavity of the chute.

[0012] Preferably, the baffle plate and the triangular chuck are on the same axis, and a plurality of limit blocks are inserted on one side of the triangular chuck, and the limit blocks are fixedly connected to one side of the triangular chuck.

[0013] Preferably, one end of the insertion plate is in a conical angle shape.

[0014] Preferably, the auxiliary fixing mechanism includes: a bolt screwed to the outer side of the claw; a clamping plate, one end of the bolt extends into the inner side of the claw and is rotatably provided with a clamping plate through a bearing, and the clamping plate is inserted into the inner cavity of the slot; a lead screw, a plurality of lead screws are rotatably arranged circumferentially in the inner cavity of the triangular chuck; a lead screw nut screwed to the outer wall of the lead screw; a connecting column fixedly arranged on one side of the lead screw nut, and the connecting column extends out of one side of the triangular chuck; an internal hexagonal cap, one end of the lead screw extends out of the outer side of the triangular chuck and is fixedly provided with an internal hexagonal cap.

[0015] Preferably, a rubber pad is fixedly arranged on the inner side of the clamping plate.

[0016] Preferably, a pressing plate is sleeved on the outer wall of the connecting column, a plurality of clamping grooves are formed on the outer side of the connecting column, a clamping ball is inserted into one side of the inner cavity of the pressing plate, and a second spring is fixedly arranged between the clamping ball and the inner cavity of the pressing plate.

[0017] Preferably, a part of the outer wall of the clamping ball is inserted into the inner cavity of one of the clamping grooves.

[0018] A lathe fixing device for drum magazine processing proposed by the present invention has the beneficial effects that:

[0019] 1. By arranging a chip-proof component, the insertion plate can move along with the claw in the present invention, so as to prevent chips from entering the inside of the triangular chuck for interference, which is convenient for cleaning and maintenance, and avoids the phenomenon of movement jamming when adjusting the claw;

[0020] 2. The present invention is provided with an auxiliary fixing mechanism, which can be provided with a clamping plate and a rubber plate on one side of the claw. By using the clamping plate and the rubber plate to fix the inner side of the drum magazine, it can closely fit and fix the outer wall of the drum magazine, and can avoid the deformation of the drum magazine caused by excessive pre-tightening force or looseness during the processing due to too small pre-tightening force. By providing a pressing plate, the fixing range of the drum magazine can be increased to improve the fixing effect and ensure the stability and processing accuracy of the drum magazine during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the structure of the present invention;

[0022] Figure 2 is a schematic diagram of the structure of the triangular chuck of the present invention;

[0023] Figure 3 is a front sectional view of the present invention;

[0024] Figure 4 is the present invention Figure 3 magnified view of part A in;

[0025] Figure 5 is a schematic diagram of the structure of the baffle of the present invention;

[0026] Figure 6 is a top sectional view of the triangular chuck of the present invention.

[0027] In the figure: 1, lathe main body; 2, triangular chuck; 3, claw; 4, chip-proof component; 41, baffle; 42, plug board; 43, slot; 44, slider; 45, chute; 46, guide rod; 47, first spring; 48, limit block; 5, auxiliary fixing mechanism; 51, bolt; 52, clamping plate; 53, lead screw; 54, lead screw nut; 55, connecting column; 56, hexagon socket head cap; 57, rubber pad; 58, pressing plate; 59, card slot; 510, card ball; 511, second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-6 , the present invention provides a technical solution: a lathe fixing device for drum magazine processing, including: lathe main body 1, triangular chuck 2, claw 3, chip-proof component 4 and auxiliary fixing mechanism 5;

[0030] The triangular chuck 2 is arranged at one inner end of the lathe main body 1. The number of the jaws 3 is three, and the jaws 3 are movably arranged on one side of the triangular chuck 2. The chip-proof component 4 is arranged on one side of the triangular chuck 2, and the auxiliary fixing mechanism 5 is arranged on the outside of the triangular chuck 2.

[0031] As a preferred solution, furthermore, the chip-proof component 4 includes: a baffle 41, a plug board 42, a slot 43, a slider 44, a chute 45, a guide rod 46, a first spring 47 and a limit block 48;

[0032] In order to enable the plug board 42 to move elastically, the baffle 41 is detachably arranged on one side of the triangular chuck 2 by screws. A plurality of slots 43 are circumferentially formed on the outer side of the baffle 41, and the slots 43 communicate with the inner cavity of the baffle 41. The plug board 42 is inserted into the inner cavity of the slot 43, and one end of the plug board 42 extends into the slot 43. The inner side of the jaw 3 contacts with one side of the plug board 42;

[0033] In order to limit the plug board 42, chutes 45 are formed on both the left and right sides of the inner cavity of the slot 43, and the sliders 44 are inserted into the inner cavities of the chutes 45. One side of the slider 44 is fixedly connected with the plug board 42. The guide rod 46 is fixedly arranged in the inner cavity of the chute 45, and the guide rod 46 is adaptively inserted into the slider 44. The first spring 47 is fixedly arranged between the slider 44 and the inner cavity of the chute 45.

[0034] As a preferred solution, furthermore, the baffle 41 and the triangular chuck 2 are on the same axis. A plurality of limit blocks 48 are inserted into one side of the triangular chuck 2, and the limit blocks 48 are fixedly connected with one side of the triangular chuck 2. By arranging the limit blocks 48, the baffle 41 can be quickly fixed.

[0035] As a preferred solution, furthermore, one end of the plug board 42 is in a conical angle shape so that the plug board 42 can be inserted inward to a sufficient depth.

[0036] As a preferred solution, furthermore, the auxiliary fixing mechanism 5 includes: a bolt 51, a clamping plate 52, a lead screw 53, a lead screw nut 54, a connecting column 55, an internal hexagonal cap 56, a rubber pad 57, a pressing plate 58, a card slot 59, a card ball 510 and a second spring 511;

[0037] In order to adjust the fixed axis of the drum magazine, the bolt 51 is screwed with the outer side of the jaw 3. One end of the bolt 51 extends into the inner side of the jaw 3 and is rotatably provided with a clamping plate 52 through a bearing, and the clamping plate 52 is inserted into the inner cavity of the slot 43;

[0038] In order to strengthen the fixing strength of the drum magazine, a plurality of lead screws 53 are rotatably arranged along the circumferential direction in the inner cavity of the triangular chuck 2. The lead screw nut 54 is screwed onto the outer wall of the lead screw 53. The connecting column 55 is fixedly arranged on one side of the lead screw nut 54, and the connecting column 55 extends out of one side of the triangular chuck 2. The connecting column 55 is adaptively inserted into the outside of the triangular chuck 2. One end of the lead screw 53 extends out of the outside of the triangular chuck 2 and is fixedly provided with an internal hexagonal cap 56. By rotating the internal hexagonal cap 56, it is convenient to rotate the lead screw 53.

[0039] As a preferred solution, further, a rubber pad 57 is fixedly arranged on the inner side of the clamping plate 52. By providing the rubber pad 57, it can be closely attached to the outer surface of the drum magazine, avoiding deformation of the drum magazine during clamping.

[0040] In order to increase the pressing and fixing range of the drum magazine, a pressing plate 58 is sleeved on the outer wall of the connecting column 55. A plurality of clamping grooves 59 are formed on the outer side of the connecting column 55. A clamping ball 510 is inserted into one side of the inner cavity of the pressing plate 58. A second spring 511 is fixedly arranged between the clamping ball 510 and the inner cavity of the pressing plate 58. By providing the clamping ball 510 and the second spring 511, the pressing plate 58 can be fixed on the outer side of the connecting column 55.

[0041] As a preferred solution, further, a part of the outer wall of the clamping ball 510 is inserted into the inner cavity of one of the clamping grooves 59, so that the pressing plate 58 can move on the outer wall of the connecting column 55 under the pulling of an external force.

[0042] The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0043] Step 1: Before clamping and fixing the drum magazine, the baffle 41 is fixed on one side of the triangular chuck 2 by screws. Under the positioning of the limit block 48, it is convenient to position the baffle 41, and the clamping jaw 3 is inserted into the slot 43.

[0044] Step 2: When adjusting the position of the clamping jaw 3, the clamping jaw 3 can squeeze the plug board 42 to push the plug board 42 to drive the slider 44 to compress the first spring 47, so that the plug board 42 moves with the clamping jaw 3 under the elastic force of the first spring 47, thereby avoiding chips from entering the inside of the triangular chuck 2 for interference and facilitating cleaning and maintenance.

[0045] Step 3: When loading the drum magazine, the drum magazine is loaded inside the clamping jaw 3. When the loaded drum magazine is eccentric, rotate the bolt 51 on one side, so that the bolt 51 pushes the clamping plate 52 to move to one side, thereby being able to adjust the position of the drum magazine to ensure that the drum magazine can rotate smoothly. Under the extrusion and fixation of the rubber pad, it can be closely attached and fixed to the outer wall of the drum magazine, and it can avoid deformation of the drum magazine caused by excessive pre-tightening force or looseness during the processing due to too small pre-tightening force.

[0046] Step 4: Rotate the hexagon socket cap 56 to rotate the lead screw 53. Under the action of the external wall thread rotation force of the lead screw 53, the lead screw nut 54 moves to one side, driving the connecting column 55 and the pressing plate 58 to move to one side, so that the pressing plate 58 presses against the outer wall of the drum, improving the fixing strength of the drum. Pull the pressing plate 58 outward, so that the ball 510 moves outward under the extrusion of the inner wall of the card slot 59 and extrudes the second spring 511. Under the elastic force of the second spring 511, the ball 510 can be limited in one of the card slots 59 to automatically limit the pressing plate 58. By extending the pressing plate 58 outward, the fixing range of the drum can be increased, improving the fixing effect and ensuring the stability and processing accuracy of the drum during the processing.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lathe fixing device for drum processing, characterized in that: include: Lathe body (1); A triangular chuck (2) is arranged at one end of the inner side of the lathe body (1); Clamping jaws (3), the number of the clamping jaws (3) is three and they are movably arranged on one side of the triangular chuck (2); A chip prevention component (4) is arranged on one side of the triangular chuck (2); The auxiliary fixing mechanism (5) is arranged on the outside of the triangular chuck (2).

2. A lathe fixing device for drum processing according to claim 1, characterized in that: The anti-chip component (4) comprises: A baffle (41) is detachably arranged on one side of the triangular chuck (2) by means of screws; The outer side of the baffle plate (41) is provided with a plurality of slots (43) along the circumferential direction, and the slots (43) are communicated with the inner cavity of the baffle plate (41), the inner cavity of the slots (43) is plugged with the plug plate (42), and one end of the plug plate (42) extends into the slots (43), and the inner side of the claw (3) contacts one side of the plug plate (42); A slider (44), wherein the inner cavity of the slot (43) is provided with a slide groove (45) on both the left and right sides, and the inner cavity of the slide groove (45) is plugged with a slider (44), and one side of the slider (44) is fixedly connected to the plug plate (42); A guide rod (46) is fixedly arranged in the inner cavity of the slide groove (45), and the guide rod (46) is adapted to be plugged into the slide block (44); The first spring (47) is fixedly arranged between the slider (44) and the inner cavity of the slide groove (45).

3. A lathe fixing device for drum processing according to claim 2, characterized in that: The baffle (41) and the triangular chuck (2) are located on the same axis, and a plurality of limit blocks (48) are inserted into one side of the triangular chuck (2), and the limit blocks (48) are fixedly connected to one side of the triangular chuck (2).

4. A lathe fixing device for drum processing according to claim 3, characterized in that: One end of the inserting plate (42) is in a cone shape.

5. The lathe fixing device for drum processing according to claim 1 is characterized in that: The auxiliary fixing mechanism (5) comprises: A bolt (51) is threadedly connected to the outer side of the claw (3); A clamping plate (52), one end of the bolt (51) extends into the inner side of the claw (3) and is rotatably provided with the clamping plate (52) through a bearing, and the clamping plate (52) is plugged into the inner cavity of the slot (43); A lead screw (53), wherein the inner cavity of the triangular chuck (2) is provided with a plurality of lead screws (53) rotatably arranged along the circumferential direction; A lead screw nut (54) threadedly connected to the outer wall of the lead screw (53); A connecting column (55) is fixedly arranged on one side of the lead screw nut (54), and the connecting column (55) extends out of one side of the triangular chuck (2); An inner hexagonal cap (56), one end of the lead screw (53) extends out of the outer side of the triangular chuck (2) and is fixedly provided with an inner hexagonal cap (56).

6. A lathe fixing device for drum processing according to claim 5, characterized in that: A rubber pad (57) is fixedly arranged on the inner side of the clamping plate (52).

7. A lathe fixing device for drum processing according to claim 6, characterized in that: The outer wall of the connecting column (55) is sleeved with a pressure plate (58), and a plurality of slots (59) are provided on the outer side of the connecting column (55). A locking ball (510) is inserted into one side of the inner cavity of the pressure plate (58), and a second spring (511) is fixedly arranged between the locking ball (510) and the inner cavity of the pressure plate (58).

8. A lathe fixing device for drum processing according to claim 7, characterized in that: The outer wall portion of the locking ball (510) is plugged into the inner cavity of one of the locking grooves (59).

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