Sectional type cutting milling cutter with length convenient to adjust

Abstract

The invention discloses a sectional type cutting milling cutter convenient in length adjustment, which comprises a main body mechanism, and further comprises an external limiting mechanism which is connected outside the main body mechanism in a sleeving manner and is used for limiting the main body mechanism and enabling the main body mechanism to turn over; the damping mechanism is mounted on the external limiting mechanism and is in contact with one end of the main body mechanism; the main body mechanism comprises a central supporting rod which is located at the central position of the main body mechanism, extension rods are meshed with the two ends of the central supporting rod through threads respectively, and the extension rods can be overlapped through threaded connection; the two tool bits are connected with the outer ends of the extension rods located at the two ends through threads; the sectional type cutting and milling cutter with the length convenient to adjust has the advantages that different cutter heads and different lengths can be assembled according to requirements, the structure is simple, the sectional type cutting and milling cutter can be applied to small cutting and milling cutters, and the two cutter heads are additionally provided, so that the sectional type cutting and milling cutter can be quickly switched in the machining process, and the time consumed for installation is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a segmented cutting milling cutter which is convenient for adjusting the length. Background Art

[0002] In mechanical manufacturing, milling cutters are used to mill workpieces, creating a variety of shapes, including planes, steps, grooves, and formed surfaces. These cutters are widely used in industries such as automotive parts manufacturing, aerospace parts processing, and mold manufacturing. Existing milling cutters are integrated, and to accommodate varying lengths, multiple cutters of varying specifications are required.

[0003] Application No. CN 119589004 A discloses a segmented cutting milling cutter that is easy to adjust in length and can be assembled in segments. However, due to the complex structure, in order to achieve the assembly and normal use of the tool, this solution can only be applied to large cutting tools and is not suitable for small tools. Summary of the Invention

[0004] The invention discloses a segmented cutting milling cutter with easy length adjustment, aiming to solve the technical problem of complex assembly structure and unsuitability for small cutting tools.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A segmented cutting milling cutter with easy length adjustment includes a main body, an external limiting mechanism sleeved on the outside of the main body for limiting the main body and enabling the main body to be turned over, and a shock absorbing mechanism mounted on the external limiting mechanism and in contact with one end of the main body.

[0007] The main body mechanism includes: a central support rod, located at the center of the main body mechanism, with extension rods respectively engaged at both ends through threads, and the extension rods can be stacked through threaded connection; two cutting heads, connected to the outer ends of the extension rods at both ends through threads; two spare cutting heads, which have different specifications from the cutting heads and are connected to the outer ends of the extension rods at both ends through threads;

[0008] The main body mechanism also includes: two screw rods 2, which are respectively fixedly connected to the two ends of the central support rod; multiple screw rods 1, which are respectively fixedly connected to one end of multiple extension rods; multiple screw holes 2, which are respectively arranged on the inner wall of one side of the multiple extension rods, and the multiple screw rods 2 are respectively engaged in the multiple screw holes 2.

[0009] A main body mechanism is provided, in which a central support rod is used as the middle section and is extended to both ends by a threaded connection, wherein the extension rods can be stacked, and two cutter heads are provided and fixed to the ends of the extension rods respectively. Under this structure, different spindle lengths and different cutting tools can be assembled by stacking multiple extension rods and replacing spare cutter heads, thereby meeting different processing requirements, without the need to prepare multiple cutting tools additionally, reducing cost expenditure, and due to its simple structure, it can be applied to small cutting milling cutters.

[0010] In a preferred embodiment, the main body structure further includes: a plurality of screw holes 1, which are respectively arranged on the inner wall of one side of the cutter head, and a plurality of screw rods 1 are respectively engaged in the plurality of screw holes 1; a plurality of screw holes 3, which are respectively arranged on the inner wall of one side of the spare cutter head, and a plurality of screw rods 1 are respectively engaged in the plurality of screw holes 3; and a plurality of groups of limiting sockets, which are divided into two groups and are respectively arranged on the inner walls on both sides facing each other of the two extension rods at the end.

[0011] In a preferred embodiment, the shock-absorbing mechanism includes: a mounting groove, which is arranged on the inner wall of the bottom end of the connecting rod; a shock-absorbing spring, which is fixedly connected to the inner wall of the top end of the mounting groove; a circular abutment plate, which is fixedly connected to the bottom end of the shock-absorbing spring, and the circumferential outer wall of the circular abutment plate is fixedly sleeved with a rubber ring, and the rubber ring is movably fitted to the circumferential inner wall of the mounting groove.

[0012] By providing a shock-absorbing mechanism, when the multiple clamping frames of the external limiting mechanism are stably clamped on the outer periphery of the extension rod or the central support rod, one end of the cutter head or spare cutter head at the top is just in contact with the bottom outer wall of the circular support plate. Based on the setting of the shock-absorbing spring, the tightness of the connection and the accuracy of the installation position can be guaranteed. In addition, through the setting of the shock-absorbing spring and the rubber ring, a shock-absorbing effect can be provided at the top of the main mechanism to attenuate the instantaneous impact load during the cutting process, thereby effectively ensuring the service life of the cutter head or spare cutter head.

[0013] In a preferred embodiment, the external limiting mechanism includes: a connecting rod for connecting to the output end of the cutting device; two side clamping plates symmetrically fixedly connected to the outer wall of the bottom end of the connecting rod, and the inner walls of the side clamping plates movably fit the circumferential outer wall of the main body mechanism; an external thread provided on the outer walls of the two side clamping plates;

[0014] The external limiting mechanism further includes: an annular groove provided on the inner walls of the two side clamping plates; two support rods symmetrically fixedly connected to the inner walls of the two side clamping plates, and the support rods are correspondingly inserted into the limiting insertion holes; two semi-annular brackets are respectively clamped in the limiting insertion holes, and the two ends of the two semi-annular brackets are in contact with each other;

[0015] The external limiting mechanism further includes: a plurality of hinged rods fixedly connected to the outer wall of the bottom end of each semi-circular bracket at equal intervals; a plurality of clamping frames, the outer walls of which are arranged at an angle, and the top outer wall of each clamping frame is fixedly connected to a hinged frame, and the hinged frame is hinged to each hinged rod accordingly;

[0016] The external limiting mechanism further includes: a sleeve, which is arranged around the outside of the connecting rod, and whose bottom end is movably fitted to the outer walls of the multiple clamping frames; an internal thread, which is arranged on the inner wall of the sleeve and is used to engage with the external thread.

[0017] By providing an external limiting mechanism, multiple clamping frames can be clamped inward at the same time by rotating the sleeve downward, completing the connection between the external limiting mechanism and the main body mechanism. Based on the two extension rods at the end, limiting sockets are respectively provided, which can make the main body mechanism flipped and limited, avoiding the external limiting mechanism from clamping the main body mechanism too large, and ensuring that the cutting length of the main body mechanism after flipping remains consistent, which is suitable for the use and clamping of the cutter heads at both ends, and ensures stability during the cutting process.

[0018] As can be seen from the above, a segmented cutting milling cutter that is easy to adjust the length includes a main body mechanism, and also includes: an external limiting mechanism, which is sleeved on the outside of the main body mechanism, used to limit the main body mechanism and enable the main body mechanism to be flipped; a shock absorbing mechanism, which is installed on the external limiting mechanism and contacts one end of the main body mechanism; the main body mechanism includes: a central support rod, which is located at the center of the main body mechanism, and its two ends are respectively engaged with extension rods through threads, and the extension rods can be stacked through threaded connections; two cutter heads, which are connected to the outer ends of the extension rods at both ends through threads; two spare cutter heads, which are different in specifications from the cutter heads, and are connected to the outer ends of the extension rods at both ends through threads. The segmented cutting milling cutter that is easy to adjust the length provided by the present invention has the function of assembling different cutter heads and different lengths according to needs, and has a simple structure, and can be applied to small cutting milling cutters. In addition, two cutter heads are provided, which can be quickly switched during the processing process, thereby reducing the technical effect of long installation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a segmented cutting milling cutter with easy length adjustment proposed by the present invention.

[0020] Figure 2 This is a schematic diagram of the disassembled main body structure of a segmented cutting milling cutter with easy length adjustment proposed by the present invention.

[0021] Figure 3 This is a schematic diagram of the disassembled connection structure of the spare cutter head of a segmented cutting milling cutter that is easy to adjust the length proposed by the present invention.

[0022] Figure 4This is a schematic diagram of the disassembled external limiting mechanism of a segmented cutting milling cutter that is easy to adjust the length proposed by the present invention.

[0023] Figure 5 This is a schematic structural diagram of a shock absorbing mechanism of a segmented cutting milling cutter with easy length adjustment proposed by the present invention.

[0024] In the figure: 1. external limiting mechanism; 2. main body mechanism; 3. shock-absorbing mechanism; 101. internal thread; 102. sleeve; 103. hinged frame; 104. clamping frame; 105. external thread 1; 106. support rod; 107. annular slot; 108. side clamp; 109. connecting rod; 110. semi-annular bracket; 111. hinged rod; 201. cutter head; 202. screw hole 1; 203. limiting socket; 204. screw rod 1; 205. extension rod; 206. screw hole 2; 207. screw rod 2; 208. center support rod; 209. screw hole 3; 210. spare cutter head; 301. mounting slot; 302. shock-absorbing spring; 303. rubber ring; 304. circular abutment plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] The invention discloses a segmented cutting milling cutter with easy length adjustment, which is mainly used in cutting processing scenarios.

[0027] Reference Figure 1 A segmented cutting milling cutter that is easy to adjust in length, comprising a main body 2, and further comprising:

[0028] The external limiting mechanism 1 is sleeved on the outside of the main mechanism 2 and is used to limit the main mechanism 2 and enable the main mechanism 2 to be turned over;

[0029] The shock absorbing mechanism 3 is mounted on the external limiting mechanism 1 and contacts one end of the main mechanism 2;

[0030] The main body 2 includes:

[0031] The central support rod 208 is located at the center of the main body 2, and the two ends thereof are respectively engaged with the extension rods 205 through threads, and the extension rods 205 can be superimposed through threaded connection;

[0032] The two cutting heads 201 are connected to the outer ends of the extension rods 205 at both ends through threads;

[0033] The two spare blade heads 210 have different specifications from the blade head 201 and are connected to the outer ends of the extension rods 205 at both ends through threads.

[0034] Reference Figure 2 In a preferred embodiment, the main body 2 further includes:

[0035] Two screw rods 207 are fixedly connected to the two ends of the central support rod 208;

[0036] A plurality of screw rods 204 are respectively fixedly connected to one end of a plurality of extension rods 205;

[0037] Multiple screw holes 206 are respectively arranged on the inner wall of one side of the multiple extension rods 205, and multiple screw rods 207 are respectively engaged in the multiple screw holes 206. The main body mechanism 2 uses the central support rod 208 as the middle section and extends to both ends through threaded connection. The extension rods 205 can be stacked and the connection is established by engaging adjacent screw rods 1 204 in the screw holes 206.

[0038] Reference Figure 2 and Figure 3 In a preferred embodiment, the main body 2 further includes:

[0039] Multiple screw holes 202 are respectively provided on the inner wall of one side of the cutter head 201, and multiple screw rods 204 are respectively engaged in the multiple screw holes 202. At the same time, two cutter heads 201 are provided, and the two cutter heads 201 are fixed to the ends of the extension rod 205 by respectively engaging the screw rods 204 in the screw holes 202. Under this structure, different spindle lengths and different cutting tools can be assembled by stacking multiple extension rods 205 and replacing spare cutter heads 210, thereby meeting different processing requirements without the need to prepare multiple cutting tools, thereby reducing cost expenditure.

[0040] A plurality of screw holes 3 209 are respectively provided on an inner wall of one side of the spare blade head 210 , and a plurality of screw rods 1 204 are respectively engaged in the plurality of screw holes 3 209 ;

[0041] Multiple groups of limiting sockets 203 are divided into two groups and are respectively arranged on the inner walls on the opposite sides of the two extension rods 205 located at the end. At the same time, due to the simple structure, it can be used in small cutting milling cutters. In addition, based on the external limiting mechanism 1 being sleeved on the outside of the main mechanism 2, and driving the main mechanism 2 to flip and limit, the two cutter heads 201 or the spare cutter head 210 can be switched for use, so that when the cutter head 201 is damaged or the spare cutter head 210 is switched for use, no additional assembly is required, thereby achieving quick switching and reducing the time consumed in installation.

[0042] Reference Figure 4 In a preferred embodiment, the external limiting mechanism 1 includes:

[0043] Connecting rod 109, used to connect to the output end of the cutting equipment;

[0044] The two side clamping plates 108 are symmetrically fixedly connected to the outer wall of the bottom end of the connecting rod 109, and the inner walls of the side clamping plates 108 are movably fitted to the circumferential outer wall of the main body mechanism 2;

[0045] External threads 105 are provided on the outer walls of the two side clamping plates 108 .

[0046] Reference Figure 4 In a preferred embodiment, the external limiting mechanism 1 further includes:

[0047] Annular grooves 107 are provided on the inner walls of the two side clamping plates 108;

[0048] Two support rods 106 are symmetrically fixedly connected to the inner walls of the two side clamping plates 108, and the support rods 106 are correspondingly inserted into the limiting holes 203;

[0049] The two semi-circular brackets 110 are respectively clamped in the limiting sockets 203, and the two ends of the two semi-circular brackets 110 fit together. The connecting rod 109 is used to connect with the cutting equipment. First, open the two side clamps 108 to make the two semi-circular brackets 110 form a complete circle, and clamp them in the annular groove 107. Then, the support rod 106 is clamped to establish a connection and positioning with an extension rod 205 at the end.

[0050] Reference Figure 4 In a preferred embodiment, the external limiting mechanism 1 further includes:

[0051] A plurality of hinge rods 111 are fixedly connected to the outer wall of the bottom end of each semi-annular bracket 110 at equal intervals;

[0052] The outer walls of the plurality of clamping frames 104 are arranged at an angle. The outer wall of the top end of each clamping frame 104 is fixedly connected to a hinge frame 103 , and the hinge frame 103 is hinged to each hinge rod 111 .

[0053] Reference Figure 4 In a preferred embodiment, the external limiting mechanism 1 further includes:

[0054] The sleeve 102 is disposed around the connecting rod 109, and its bottom end is movably attached to the outer wall of the plurality of clamping frames 104;

[0055] The internal thread 101 is arranged on the inner wall of the sleeve 102 and is used to engage with the external thread 105. Then the sleeve 102 is rotated downward, and the engagement of the internal thread 101 and the external thread 105 gradually pushes the bottom of the sleeve 102 to be tightly squeezed against the outer wall of multiple clamping frames 104, so that multiple clamping frames 104 are clamped inward at the same time, completing the connection between the external limit mechanism 1 and the main body mechanism 2. Based on the two extension rods 205 at the end, the limiting sockets 203 are respectively provided, so that the main body mechanism 2 can be flipped, and the support rod 106 is clamped in the limiting socket 203 on the other extension rod 205. Under this structure, the length of the cutter head 201 at the other end can be used to achieve positioning, avoiding the external limit mechanism 1 from clamping the main body mechanism 2 too large, and ensuring that the cutting length of the main body mechanism 2 after flipping remains consistent, which is suitable for the use and clamping of the cutter heads 201 at both ends to ensure stability during the cutting process.

[0056] Reference Figure 5 In a preferred embodiment, the shock absorbing mechanism 3 includes:

[0057] The mounting groove 301 is provided on the inner wall of the bottom end of the connecting rod 109;

[0058] The shock absorbing spring 302 is fixedly connected to the top inner wall of the mounting groove 301;

[0059] The circular plate 304 is fixedly connected to the bottom end of the shock absorbing spring 302, and the outer circumferential wall of the circular plate 304 is fixedly sleeved with a rubber ring 303, and the rubber ring 303 is movably fitted to the inner circumferential wall of the mounting groove 301. When the multiple clamping frames 104 of the external limiting mechanism 1 are stably clamped on the outer circumference of the extension rod 205 or the central support rod 208, one end of the top blade 201 or the spare blade 210 is just fitted to the bottom outer wall of the circular plate 304. Based on the shock absorbing spring 302 The extrusion force can give the main body 2 a downward thrust, thereby strengthening the connection tightness of the support rod 106 in the limiting socket 203, avoiding the gap between the limiting socket 203 and the support rod 106 affecting the connection stability, and ensuring the accuracy of the installation position. In addition, through the setting of the shock-absorbing spring 302 and the rubber ring 303, a shock-absorbing effect can be provided at the top of the main body 2 to attenuate the instantaneous impact load during the cutting process, effectively ensuring the service life of the cutter head 201 or the spare cutter head 210.

[0060] Working principle: The main body 2 is connected to the two ends of the main body 2 by a central support rod 208 as the middle section, which is extended to both ends by a threaded connection, wherein the extension rod 205 can be stacked, and the connection is established by the adjacent screw rod 1 204 engaging with the screw hole 206. At the same time, two cutter heads 201 are provided, and the two cutter heads 201 are fixed to the ends of the extension rod 205 by respectively engaging the screw rod 1 204 with the screw hole 1 202. Under this structure, the assembly of different spindle lengths and different tools can be achieved by stacking multiple extension rods 205 and replacing the spare cutter head 210, thereby achieving different processing. The tool can be used to cut materials at any time without the need for additional preparation of multiple cutting tools, thereby reducing cost expenditure. At the same time, due to its simple structure, it can be applied to small cutting milling cutters. In addition, the external limiting mechanism 1 is sleeved on the outside of the main mechanism 2, and can drive the main mechanism 2 to flip and limit, so that the two cutter heads 201 or the spare cutter head 210 can be switched for use. Therefore, when the cutter head 201 is damaged or the spare cutter head 210 is switched for use, no additional assembly is required, thereby achieving quick switching and reducing the time consumed in installation. Since the rotation direction of each thread is opposite to the overall rotation direction during milling, it will not affect the stability.

[0061] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A segmented cutting milling cutter that is easy to adjust in length, comprising a main body mechanism (2), characterized in that: Also includes: An external limiting mechanism (1) is sleeved on the outside of the main mechanism (2) and is used to limit the main mechanism (2) and enable the main mechanism (2) to be turned over; A shock absorbing mechanism (3) is mounted on the external limiting mechanism (1) and contacts one end of the main mechanism (2); The main body (2) comprises: The central support rod (208) is located at the center of the main body (2), and the two ends of the central support rod (208) are respectively engaged with the extension rods (205) through threads, and the extension rods (205) can be superimposed through threaded connection; The two cutting heads (201) are connected to the outer ends of the extension rods (205) at both ends through threads; The two spare cutter heads (210) are of different specifications from the cutter head (201) and are connected to the outer ends of the extension rods (205) at both ends through threads.

2. A segmented cutting milling cutter with easy length adjustment according to claim 1, characterized in that: The main body (2) further comprises: Two screw rods (207) are fixedly connected to the two ends of the central support rod (208); A plurality of screw rods (204) are respectively fixedly connected to one end of a plurality of extension rods (205); The plurality of screw holes (206) are respectively arranged on the inner wall of one side of the plurality of extension rods (205), and the plurality of screw rods (207) are respectively engaged with the plurality of screw holes (206).

3. A segmented cutting milling cutter with easy length adjustment according to claim 2, characterized in that: The main body (2) further comprises: A plurality of screw holes (202) are respectively arranged on an inner wall of one side of the cutter head (201), and a plurality of screw rods (204) are respectively engaged in the plurality of screw holes (202); A plurality of screw holes three (209) are respectively arranged on the inner wall of one side of the spare cutter head (210), and a plurality of screw rods one (204) are respectively engaged in the plurality of screw holes three (209); A plurality of groups of limiting sockets (203) are divided into two groups and are respectively arranged on the inner walls of the two extension rods (205) at the ends facing each other.

4. A segmented cutting milling cutter with easy length adjustment according to claim 3, characterized in that: The external limiting mechanism (1) comprises: A connecting rod (109) for connecting to an output end of a cutting device; Two side clamping plates (108) are symmetrically fixedly connected to the outer wall of the bottom end of the connecting rod (109), and the inner walls of the side clamping plates (108) are movably fitted to the circumferential outer wall of the main body mechanism (2); External thread 1 (105) is provided on the outer walls of the two side clamping plates (108).

5. The segmented cutting milling cutter with easy length adjustment according to claim 4, characterized in that: The external limiting mechanism (1) further comprises: An annular groove (107) is provided on the inner walls of the two side clamping plates (108); Two support rods (106) are symmetrically fixedly connected to the inner walls of the two side clamping plates (108), and the support rods (106) are correspondingly inserted into the limiting insertion holes (203); The two semi-annular supports (110) are respectively clamped in the limiting insertion holes (203), and the two ends of the two semi-annular supports (110) are fitted to each other.

6. A segmented cutting milling cutter with easy length adjustment according to claim 5, characterized in that: The external limiting mechanism (1) further comprises: A plurality of hinged rods (111) are fixedly connected to the outer wall of the bottom end of each semi-annular bracket (110) at equal intervals; The outer walls of the multiple clamping frames (104) are arranged in an inclined manner. The outer wall of the top end of each clamping frame (104) is fixedly connected to a hinge frame (103), and the hinge frame (103) is correspondingly hinged to each hinge rod (111).

7. A segmented cutting milling cutter with easy length adjustment according to claim 6, characterized in that: The external limiting mechanism (1) further comprises: The sleeve (102) is disposed around the outside of the connecting rod (109), and the bottom end thereof is movably attached to the outer wall of the plurality of clamping frames (104); The internal thread (101) is provided on the inner wall of the sleeve (102) and is used to engage with the external thread (105).

8. The segmented cutting milling cutter with easy length adjustment according to claim 4, characterized in that: The shock absorbing mechanism (3) comprises: A mounting groove (301) is provided on the inner wall of the bottom end of the connecting rod (109); A shock-absorbing spring (302) is fixedly connected to the top inner wall of the mounting groove (301); The circular abutment plate (304) is fixedly connected to the bottom end of the shock-absorbing spring (302), and a rubber ring (303) is fixedly sleeved on the circumferential outer wall of the circular abutment plate (304), and the rubber ring (303) is movably fitted on the circumferential inner wall of the installation groove (301).

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