Tool bit fixing structure for lathe

Abstract

The tool bit fixing structure for the lathe comprises a tool bar, first screw holes are formed in the front side and the rear side of the left end of the top of the tool bar, and the inner surfaces of the first screw holes are connected with tool bit fixing pieces through first hexagon socket screws. The second hexagon socket screw penetrates out of the through hole where the tool bit needs to be installed and is screwed into the second screw hole through the external hexagon wrench, and then the first hexagon socket screw sequentially penetrates out of the second reserved hole and the inner surface of the first reserved hole and is screwed into the first screw hole through the external hexagon wrench. At the moment, the pressing rod can limit the top of the tool bit, and in the process, people can freely adjust the angle of the tool bit fixing pieces, so that the two tool bit fixing pieces can effectively fix different corners of different types of tool bits, specifically, the arc-shaped part can fix the tool bits with the corners being of an arc-shaped structure, and the tool bits with the corners being of an arc-shaped structure can be fixed through the arc-shaped part; and the plane part can be used for fixing the tool bit of which the corner is of a plane structure.

Description

Technical Field

[0001] The present invention relates to the technical field of lathes, in particular to a tool head fixing structure for a lathe. Background Art

[0002] Lathe is the most important type of metal cutting machine tool. It is the largest in number in general machine manufacturing factories and is also called a mother machine. Drills, reamers, reamers, taps, dies and knurling tools can also be used on lathes for corresponding processing. The function of a lathe is to cut rotating surfaces of various sizes and shapes, as well as spiral surfaces. A lathe needs to use a tool head when processing objects, and in order to improve the fixation of the tool head, a tool rod is needed. However, the existing tool rod has a fixed structure because the tool head slot is a fixed structure, resulting in one tool rod being able to fix only one type of tool head. This not only increases the purchase cost of the tool rod, but also brings inconvenience to people's use. For this reason, we propose a tool head fixing structure for a lathe. Summary of the Invention

[0003] The object of the present invention is to provide a tool head fixing structure for a lathe to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a tool head fixing structure for a lathe, comprising a tool rod, wherein a first screw hole is provided on both the front and rear sides of the left end of the top of the tool rod, and the inner surface of the first screw hole is connected to the tool head fixing part through a first hexagon socket bolt, the top of the tool rod and the right side of the first screw hole are fixedly connected to a first bracket, and the inner surface of the first bracket is threadedly connected to a first screw, the left side of the first screw is movably connected to a movable plate through a bearing, the top of the movable plate is fixedly connected to a third bracket, and the left end of the inner surface of the third bracket is movably connected to a tooth plate.

[0005] Preferably, a second screw hole is opened at the left end of the inner surface of the knife rod, the inner surface of the second screw hole is threadedly connected to a second hexagonal bolt, a protrusion is inserted into the hexagonal hole of the second hexagonal bolt, the top of the protrusion is movably connected to the second screw rod through a bearing, the upper end of the outer surface of the second screw rod is fixedly connected to the second gear, and the top of the second screw rod is fixedly connected to the second knob.

[0006] Preferably, the outer surface of the second screw is threadedly connected to the second bracket, the bottom of the second bracket is provided with a third screw hole, the inner surface of the third screw hole is threadedly connected to the screw, and a countersunk hole is provided at the connection between the knife rod and the screw.

[0007] Preferably, a pressure rod is provided on the outer surface of the first hexagon socket bolt, a second reserved hole is provided at the connection between the pressure rod and the first hexagon socket bolt, a first sliding groove is provided at the connection between the knife rod and the movable plate, a first knob is fixedly connected to the right side of the first screw, and a first gear is fixedly connected to the top of the tooth plate.

[0008] Preferably, the right ends of the tops of the second and third brackets are fixedly connected to a sleeve, the inner cavity of the sleeve is movably connected to a gear rod through a damper and a spring, the damper is located on the inner side of the spring, the right end of the top of the gear rod is fixedly connected to a push block, and a second sliding groove is provided at the connection between the sleeve and the push block.

[0009] Preferably, the cutter head fixing member includes a fixing rod, the outer side of the fixing rod is provided with teeth, a first reserved hole is provided at the connection between the fixing rod and the first hexagon socket bolt, the rear end of the inner side of the fixing rod is provided with an arc portion, and the front end of the inner side of the fixing rod is provided with a flat portion.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. According to the present invention, the second hexagon socket bolt is passed through the through hole where the cutter head needs to be installed, and is screwed into the second screw hole by an external hexagonal wrench. The first hexagon socket bolt is then passed through the second reserved hole and the inner surface of the first reserved hole in sequence, and is screwed into the first screw hole by the external hexagonal wrench. At this time, the pressure rod can limit the top of the cutter head, and in this process, people can freely adjust the angle of the cutter head fixing member so that the two cutter head fixing members can effectively fix different corners of different types of cutter heads. Specifically: the arc portion can fix the cutter head with an arc structure at the corner, and the flat portion can fix the cutter head with a flat structure at the corner. When the fixation is completed, the deflection angle of the tooth plate is adjusted, and the first screw is turned by the first knob. Under the cooperation of the bearing, the movable plate, the first bracket and the first slide groove, the third bracket can be driven to move to the left, so that the tooth plate can be engaged with the teeth, further improving the fixing effect of the cutter head fixing member on different corners of the cutter head.

[0011] 2. According to the present invention, the screw can be passed through the countersunk hole and screwed into the third screw hole through an external screwdriver as needed, so that the second bracket can be fixed on the surface of the tool rod, and then the second screw can be screwed through the second knob. With the cooperation of the bearing, the protrusion can be driven to move downward, so that the protrusion can limit the hexagonal hole of the second hexagonal socket bolt, further improving the fixing effect of the second hexagonal socket bolt on the tool head.

[0012] 3. The sleeve, gear rod, damper, spring, second slide groove and push block arranged on the top of the second bracket of the present invention can limit the second gear, thereby preventing the second screw from loosening. The sleeve, gear rod, damper, spring, second slide groove and push block arranged on the top of the third bracket can limit the first gear, thereby preventing the tooth plate from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention in the first viewing angle state; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention in a second viewing angle state; Figure 3 Schematic diagram of the countersunk hole structure of the present invention; Figure 4 Schematic diagram of the second screw hole structure of the present invention; Figure 5 This is a schematic structural diagram of the cutter head fixing member of the present invention; Figure 6 It is a schematic diagram of the spring structure of the present invention.

[0014] In the figure: the tool rod 1, the second bracket 2, the sleeve 3, the second knob 4, the second gear 5, the second reserved hole 6, the second hexagon socket bolt 7, the pressure rod 8, the tool head fixing part 9, the fixing rod 91, the teeth 92, the first reserved hole 93, the arc-shaped portion 94, the flat portion 95, the first screw rod 10, the first knob 11, the movable plate 12, the first gear 13, the first hexagon socket bolt 14, the first bracket 15, the screw rod 16, the countersunk hole 17, the protrusion 18, the second screw rod 19, the third screw hole 20, the first screw hole 21, the second screw hole 22, the first slide groove 23, the gear rod 24, the damper 25, the spring 26, the second slide groove 27, the push block 28, the third bracket 29, and the tooth plate 30. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] The tool rod 1, second bracket 2, sleeve 3, second knob 4, second gear 5, second reserved hole 6, second hexagon socket bolt 7, pressure rod 8, tool head fixing part 9, fixing rod 91, teeth 92, first reserved hole 93, arc-shaped portion 94, flat portion 95, first screw 10, first knob 11, movable plate 12, first gear 13, first hexagon socket bolt 14, first bracket 15, screw 16, countersunk hole 17, protrusion 18, second screw 19, third screw hole 20, first screw hole 21, second screw hole 22, first slide groove 23, gear rod 24, damper 25, spring 26, second slide groove 27, push block 28, third bracket 29 and tooth plate 30 components of the present application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. Example 1:

[0017] See also Figure 1 、 Figure 2 、 Figure 4 and Figure 5, provides the following technical solution, specifically disclosed: including a knife bar 1, the front and rear sides of the left end of the top of the knife bar 1 are provided with a first screw hole 21, and the inner surface of the first screw hole 21 is connected to the cutter head fixing part 9 through a first hexagon socket bolt 14, the top of the knife bar 1 and the right side of the first screw hole 21 is fixedly connected to a first bracket 15, and the inner surface of the first bracket 15 is threadedly connected to a first screw rod 10, the left side of the first screw rod 10 is movably connected to a movable plate 12 through a bearing, the top of the movable plate 12 is fixedly connected to a third bracket 29, and the inner surface of the third bracket 29 is fixedly connected to the first screw rod 10. The left end is movably connected with a tooth plate 30, the outer surface of the first hexagon socket bolt 14 is provided with a pressure rod 8, and the connection between the pressure rod 8 and the first hexagon socket bolt 14 is provided with a second reserved hole 6, and the connection between the knife bar 1 and the movable plate 12 is provided with a first slide groove 23, the right side of the first screw 10 is fixedly connected with the first knob 11, and the top of the tooth plate 30 is fixedly connected with the first gear 13, the cutter head fixing part 9 includes a fixing rod 91, the outer side of the fixing rod 91 is provided with teeth 92, and the connection between the fixing rod 91 and the first hexagon socket bolt 14 is provided with a first reserved hole 93, and the fixing rod The rear end of the inner side of 91 is provided with an arc portion 94, and the front end of the inner side of the fixing rod 91 is provided with a flat portion 95. The second hexagon socket bolt 7 is passed through the through hole where the cutter head needs to be installed, and is screwed into the second screw hole 22 through an external hexagonal wrench. Then the first hexagon socket bolt 14 is passed through the second reserved hole 6 and the inner surface of the first reserved hole 93 in turn, and is screwed into the first screw hole 21 through an external hexagonal wrench. At this time, the pressure rod 8 can limit the top of the cutter head, and in this process, people can freely adjust the angle of the cutter head fixing member 9 so that the two cutter head fixing members 9 It can effectively fix different corners of different types of cutter heads, specifically: the arc portion 94 can fix the cutter heads with arc-shaped corners, and the flat portion 95 can fix the cutter heads with flat corners. When the fixation is completed, adjust the deflection angle of the tooth plate 30, and turn the first screw 10 through the first knob 11. With the cooperation of the bearing, movable plate 12, first bracket 15 and first slide groove 23, the third bracket 29 can be driven to move to the left, so that the tooth plate 30 can engage with the teeth 92, further improving the fixing effect of the cutter head fixing part 9 on different corners of the cutter head. Example 2:

[0018] See also Figure 1 and Figure 3, provides the following technical solution, specifically disclosed: a second screw hole 22 is opened at the left end of the inner surface of the arbor 1, the inner surface of the second screw hole 22 is threadedly connected to the second hexagonal bolt 7, a protrusion 18 is inserted into the hexagonal hole of the second hexagonal bolt 7, the top of the protrusion 18 is movably connected to the second screw rod 19 through a bearing, the upper end of the outer surface of the second screw rod 19 is fixedly connected to the second gear 5, and the top of the second screw rod 19 is fixedly connected to the second knob 4, the outer surface of the second screw rod 19 is threadedly connected to the second bracket 2, and the bottom of the second bracket 2 is opened with a third screw hole 20 The inner surface of the third screw hole 20 is threadedly connected with a screw rod 16, and a countersunk hole 17 is provided at the connection between the tool rod 1 and the screw rod 16. People can pass the screw rod 16 through the countersunk hole 17 as needed and screw it into the third screw hole 20 through an external screwdriver, so that the second bracket 2 can be fixed to the surface of the tool rod 1, and then the second screw rod 19 is screwed through the second knob 4. With the cooperation of the bearing, the protrusion 18 can be driven to move downward, so that the protrusion 18 can limit the hexagonal hole of the second hexagonal socket bolt 7, thereby further improving the fixing effect of the second hexagonal socket bolt 7 on the tool head. Example 3:

[0019] See also Figure 6 , provides the following technical solution, specifically disclosed: the right ends of the second bracket 2 and the top of the third bracket 29 are fixedly connected with a sleeve 3, the inner cavity of the sleeve 3 is movably connected with the gear rod 24 through the damper 25 and the spring 26, the damper 25 is located on the inner side of the spring 26, the right end of the top of the gear rod 24 is fixedly connected with a push block 28, and a second slide groove 27 is provided at the connection between the sleeve 3 and the push block 28, the sleeve 3, gear rod 24, damper 25, spring 26, second slide groove 27 and push block 28 arranged on the top of the second bracket 2 can limit the second gear 5, thereby preventing the second screw 19 from loosening, and the sleeve 3, gear rod 24, damper 25, spring 26, second slide groove 27 and push block 28 arranged on the top of the third bracket 29 can limit the first gear 13, thereby preventing the tooth plate 30 from loosening.

[0020] The working principle of the present application is as follows: the second hexagon socket bolt 7 is passed through the through hole where the cutter head needs to be installed, and is screwed into the second screw hole 22 through an external hexagonal wrench, and then the first hexagon socket bolt 14 is passed through the second reserved hole 6 and the inner surface of the first reserved hole 93 in turn, and is screwed into the first screw hole 21 through an external hexagonal wrench. At this time, the pressure rod 8 can limit the top of the cutter head, and in this process, people can freely adjust the angle of the cutter head fixing member 9 so that the two cutter head fixing members 9 can effectively fix different corners of different types of cutter heads. Specifically, the arc portion 94 can fix the cutter head with an arc structure, and the flat portion 95 can fix the cutter head with a flat structure. When the fixation is completed, the deflection angle of the tooth plate 30 is adjusted, and the first screw 10 is screwed through the first knob 11. Under the cooperation of the bearing, movable plate 12, first bracket 15 and first slide groove 23, the third bracket 29 can be driven to move to the left, so that the tooth plate 30 can engage with the teeth 92. , further improving the fixing effect of the cutter head fixing member 9 on different corners of the cutter head, people can pass the screw 16 through the countersunk hole 17 and screw it into the third screw hole 20 through an external screwdriver as needed, so that the second bracket 2 can be fixed on the surface of the cutter bar 1, and then the second screw 19 can be screwed through the second knob 4. With the cooperation of the bearing, the protrusion 18 can be driven to move downward, so that the protrusion 18 can limit the hexagonal hole of the second hexagonal socket bolt 7, further improving the fixing effect of the second hexagonal socket bolt 7 on the cutter head. In order to improve the fixing effect of the cutter head, the sleeve 3, gear rod 24, damper 25, spring 26, second slide groove 27 and push block 28 arranged on the top of the second bracket 2 can limit the second gear 5, thereby preventing the second screw 19 from loosening. The sleeve 3, gear rod 24, damper 25, spring 26, second slide groove 27 and push block 28 set on the top of the third bracket 29 can limit the first gear 13, thereby preventing the tooth plate 30 from loosening.

[0021] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A tool head fixing structure for a lathe, comprising a tool bar (1), characterized in that: A first screw hole (21) is provided on both the front and rear sides of the left end of the top of the knife rod (1), and the inner surface of the first screw hole (21) is connected to the knife head fixing member (9) through a first hexagon socket bolt (14). A first bracket (15) is fixedly connected to the top of the knife rod (1) and located on the right side of the first screw hole (21), and the inner surface of the first bracket (15) is threadedly connected to the first screw rod (10). The left side of the first screw rod (10) is movably connected to a movable plate (12) through a bearing. The top of the movable plate (12) is fixedly connected to a third bracket (29), and the left end of the inner surface of the third bracket (29) is movably connected to a tooth plate (30).

2. The tool head fixing structure for a lathe according to claim 1, characterized in that: A second screw hole (22) is provided at the left end of the inner surface of the knife rod (1), the inner surface of the second screw hole (22) is threadedly connected to a second hexagon socket bolt (7), a protrusion (18) is inserted into the hexagon socket of the second hexagon socket bolt (7), the top of the protrusion (18) is movably connected to a second screw rod (19) through a bearing, the upper end of the outer surface of the second screw rod (19) is fixedly connected to a second gear (5), and the top of the second screw rod (19) is fixedly connected to a second knob (4).

3. The tool head fixing structure for a lathe according to claim 2, characterized in that: The outer surface of the second screw rod (19) is threadedly connected to the second bracket (2), the bottom of the second bracket (2) is provided with a third screw hole (20), the inner surface of the third screw hole (20) is threadedly connected to the screw rod (16), and a countersunk hole (17) is provided at the connection between the knife rod (1) and the screw rod (16).

4. The tool head fixing structure for a lathe according to claim 1, characterized in that: A pressure rod (8) is provided on the outer surface of the first hexagon socket bolt (14), a second reserved hole (6) is provided at the connection between the pressure rod (8) and the first hexagon socket bolt (14), a first sliding groove (23) is provided at the connection between the knife rod (1) and the movable plate (12), a first knob (11) is fixedly connected to the right side of the first screw rod (10), and a first gear (13) is fixedly connected to the top of the tooth plate (30).

5. The tool head fixing structure for a lathe according to claim 1, characterized in that: The right ends of the tops of the second bracket (2) and the third bracket (29) are fixedly connected to a sleeve (3), the inner cavity of the sleeve (3) is movably connected to a gear rod (24) through a damper (25) and a spring (26), the damper (25) is located on the inner side of the spring (26), the right end of the top of the gear rod (24) is fixedly connected to a push block (28), and a second sliding groove (27) is provided at the connection between the sleeve (3) and the push block (28).

6. The tool head fixing structure for a lathe according to claim 1, characterized in that: The cutter head fixing member (9) comprises a fixing rod (91), the outer side of the fixing rod (91) is provided with teeth (92), a first reserved hole (93) is provided at the connection between the fixing rod (91) and the first hexagon socket bolt (14), an arc portion (94) is provided at the rear end of the inner side of the fixing rod (91), and a flat portion (95) is provided at the front end of the inner side of the fixing rod (91).

Images