A machine tool for processing a miter saw support

Abstract

The present invention relates to the field of machining equipment, and in particular to a machine tool for machining a miter saw bracket, comprising a spiral cutter bar, wherein two spiral cutter bars are arranged in parallel in the same horizontal plane, and the spiral cutting edges of the two spiral cutter bars rotate in opposite directions, the same end of the two spiral cutter bars is coaxially fixedly connected with a positioning cone head, and the other ends of the two spiral cutter bars are rotatably connected with a rotating head; the two positioning cone heads are matched and plugged with diamond-shaped pressure blocks, and plugged at the diagonal positions of the pressure blocks, and the remaining two corners of the pressure blocks are located on the side away from the positioning cone heads and are slidably plugged with long push rods. The device is aimed at the T-shaped bracket of the miter saw, and adopts the method of machining the spiral cutter bar of the machining tool to be fixed, and the pushing mechanism pushes the workpiece along the spiral cutter bar for machining, thereby eliminating the need for a high-power spindle motor and adopting a lighter and cheaper cylinder, which greatly simplifies the structure of the equipment, makes the equipment low in maintenance cost and easier to use.

Description

Technical Field

[0001] The invention relates to the field of machining equipment, in particular to a machine tool for machining a miter saw bracket. Background Art

[0002] Since the circular saw blade of an ordinary miter saw cuts the material as it is pressed down by the deflection of the swing arm, the maximum incision length depends on the cutting depth of the saw blade. However, even if the ideal maximum cutting depth is reached, the incision length will be less than the diameter of the saw blade due to the obstruction of the rotating shaft connected to the circular saw blade. After the replacement of this type of miter saw, the bracket part is improved by adding a push rod that can be pushed and pulled horizontally between the bracket and the cutting mechanism, so that the circular saw blade can be moved over a large range to increase the cutting range; the bracket is characterized by an overall T-shape, with holes at both ends and the bottom of the top, the hole at the bottom is used for fixation, and the two holes at the top are used for sliding assembly of the push-pull rod, so the top hole requirements are relatively high. Thanks to the current advances in casting technology, this type of bracket can make the hole size error on the bracket smaller under the precision casting process, thereby reducing the workload of later fine processing, and only a small amount of excess material needs to be removed by reaming the inner wall of the hole.

[0003] At present, this type of bracket is mostly processed in batches using multi-hole drilling equipment. The characteristic of this type of processing equipment is that one device has multiple drill bits, which can drill holes in different positions of the workpiece at the same time, and the processing efficiency is very high, but the disadvantages are also obvious. First, the spindle motor of the equipment must have very high power to drive multiple drill bits for processing at the same time. Second, the multi-drill assembly structure and drive linkage structure of the multi-hole drilling equipment are relatively complex, and generally need to be customized according to the product. The manufacturing and use costs of the equipment are relatively high. At present, the power demand of the precision-cast miter saw bracket for processing equipment has dropped significantly, and the original multi-hole drilling equipment has serious overpower. Therefore, in order to reduce the cost of equipment use and maintenance and further improve the usability of the equipment, a processing machine tool for a miter saw bracket is proposed. Summary of the invention

[0004] In view of the problems that the multi-hole drilling processing equipment used in the miter saw stand mentioned above or in the prior art has excessive performance, high maintenance cost and low usability, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a machine tool for processing a miter saw stand.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a processing machine tool for a miter saw bracket, comprising a spiral cutter bar, wherein two spiral cutter bars are arranged in parallel in the same horizontal plane, and the spiral cutting edges of the two spiral cutter bars rotate in opposite directions, the same end of the two spiral cutter bars is coaxially fixedly connected with a positioning cone head, and the other ends of the two spiral cutter bars are rotatably connected with a rotating head; the two positioning cone heads are matched and inserted with a diamond-shaped pressure block, and are inserted at the diagonal corners of the pressure block, and the remaining two corners of the pressure block are located on the side away from the positioning cone head and are slidably inserted with a long push rod, and the long push rod is parallel to the spiral cutter bar, the ends of the two long push rods away from the spiral cutter bar are commonly fixedly connected to an adapter plate, and the ends of the two long push rods located between the spiral cutter bars are commonly fixedly connected to a push plate, and the long push rods are located on the adapter plate A spring is also sleeved between one and the pressure block; a short push rod is coaxially inserted into the end of the two rotating heads away from the spiral cutter rod, and the short push rod is only allowed to move along the axial direction of the rotating heads, the two short push rods are slidably inserted into a support together, and the two short push rods are fixedly sleeved with gears on the side of the support away from the spiral cutter rod, and the two gears are equal in diameter and mesh with each other; the circumferential walls of the two rotating heads are fixedly connected with limited blocks along their radial direction, the limit block is located at one end close to the spiral cutter rod and is elastically hinged with the rotating head, and is arranged along the radial direction of the rotating head when the limit block is ejected, and the length of a single limit block is greater than the shortest distance between the two rotating heads, and the two limit blocks are symmetrically distributed about the long push rod, and when the ends of the two limit blocks conflict with each other, an air avoidance groove is penetrated by the push plate corresponding to the two conflicting limit blocks.

[0007] As a preferred solution of the processing machine tool of the miter saw bracket of the present invention, a cylinder 1 is arranged parallel to one side of the spiral cutter rod, and the effective stroke of the cylinder 1 is greater than the length of the spiral cutter rod, and the piston rod of the cylinder 1 is fixedly connected to the adapter plate 1.

[0008] As a preferred solution of the processing machine tool of the miter saw bracket of the present invention, wherein: the two short push rods are located at one end of the gear and are provided with a cylinder 2, the end of the piston rod of the cylinder 2 is connected with an adapter plate 2, and the adapter plate 2 is rotatably connected to the two short push rods, and a plane thrust bearing is also arranged between the adapter plate 2 and the short push rod, and the short push rod is provided with a hexagonal magnetic column and magnetically connected to the rotary head.

[0009] As a preferred solution of the processing machine tool of the miter saw bracket of the present invention, a motor is arranged on one side of the second cylinder, and the output shaft of the motor is parallel to the spiral cutter rod, and the output shaft of the motor is fixedly connected to a gear, and the gear is meshed with a gear on a short push rod.

[0010] As a preferred solution of the machine tool for processing the miter saw bracket of the present invention, an angular contact bearing is arranged between the end of the spiral cutter rod and the rotary head, and the outer ring of the angular contact bearing is fixedly sleeved with the spiral cutter rod, the inner ring of the angular contact bearing is fixedly sleeved with the cylindrical protrusion of the rotary head, and the angular contact bearing is assembled in a DB back-to-back manner.

[0011] As a preferred solution of the machine tool for processing the miter saw stand of the present invention, the first cylinder is provided with a single piston rod, the second cylinder is provided with a double piston rod, and the motor is a stepping motor.

[0012] As a preferred solution of the machine tool for processing the miter saw stand of the present invention, the support, the cylinder body of the first cylinder, the cylinder body of the second cylinder and the motor are relatively stationary.

[0013] As a preferred solution of the machine tool for processing the miter saw stand of the present invention, the side wall of the pressing block is provided with a tapered hole, the inner wall of the tapered hole is fitted and sleeved with the outer wall of the positioning cone head, and the positioning cone head passes through the pressing block.

[0014] As a preferred solution of the processing machine tool of the miter saw bracket of the present invention, the spiral cutter rod penetrates the push plate without contact, the outer diameter of the spiral head is equal to that of the short push rod, the blade diameter of the spiral cutter rod at one end of the positioning cone head is smaller than the blade diameter at the other end, and the blade diameter changes smoothly.

[0015] As a preferred solution of the processing machine tool of the miter saw stand of the present invention, wherein: the two spiral cutter bars are jointly sleeved with a single workpiece, and one side of the workpiece is in contact with a side of the push plate away from the adapter plate.

[0016] Beneficial effects of the processing machine tool of the miter saw stand of the present invention:

[0017] The device is designed for the new-shaped bracket of the miter saw. The spiral cutter bar of the processing tool is fixed, and the pusher mechanism pushes the workpiece along the spiral cutter bar for processing, thereby eliminating the need for a high-power spindle motor and using a lighter and cheaper cylinder, which greatly simplifies the structure of the equipment, making the equipment low in maintenance cost and easier to use.

[0018] The pushing structure and unloading structure of the device can be detached from the spiral cutter rod at any one, thereby realizing rapid loading and unloading. In particular, the limit blocks on the two spiral heads cooperate with the opposite spiral guide rod edges during workpiece processing to maintain the cutting stability of the spiral cutter rod by mutual interference. When the workpiece processing is completed, the push plate can be deflected to contact the push plate, and the two ends of the spiral push rod can be clamped in cooperation with the spring, adapter plate, long push rod and other components to realize the withdrawal of the short push rod, unloading of the workpiece and maintenance of the position of the spiral cutter rod. The structure is simple, stable and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The figure is a schematic diagram of the overall structure of a machine tool for processing a miter saw bracket.

[0021] Figure 2 A top view of the structure of a machine tool for processing a miter saw support after removing the external support.

[0022] Figure 3 For machining of miter saw supports Figure 2 A magnified view of the structure in the middle.

[0023] Figure 4 This is a structural breakdown diagram of a machine tool for processing a miter saw stand.

[0024] Figure 5 For machining of miter saw supports Figure 4 Enlarged view of the structure at point B in the middle.

[0025] Figure 6 The present invention is a schematic diagram of the structure when the push plate of the processing machine tool of the miter saw bracket is at the end point of the stroke.

[0026] Figure 7 For machining of miter saw supports Figure 6 Structural cross-section screenshot at point C in the middle.

[0027] Figure 8 Machine tools for the manufacture of miter saw stands Figure 6 Structural cross-section view at point D (D1).

[0028] Fig. 9 for Figure 8 Schematic diagram of the structure after the middle limit block is unfolded (D2).

[0029] Fig.10 This is a schematic diagram of the structure when the workpiece falls after the short push rod is pulled out of cylinder 2.

[0030] Fig.11 The figure is a schematic diagram of the assembly structure of the limit block and the rotary head of the machine tool for processing the miter saw bracket.

[0031] In the figure: 100, spiral tool rod; 101, positioning cone head; 102, spiral head; 103, pressure block; 104, long push rod; 105, adapter plate 1; 106, push plate; 107, spring; 108, short push rod; 109, support; 110, gear; 111, limit block; 112, angular contact bearing; 103a, tapered hole; 108a, magnetic column; 200, cylinder 1; 300, cylinder 2; 301, adapter plate 2; 302, plane thrust bearing; 400, motor; 500, workpiece. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] Example, see Figure 1 to Figure 11 , which is the first embodiment of the present invention, provides a machine tool for processing a miter saw bracket, which can achieve the effect of fast reaming and finishing of the miter saw bracket hole. The processing equipment has a simple structure, convenient operation, and low maintenance cost. Figure 2 and Figure 3 As shown, it includes a spiral cutter rod 100, two spiral cutter rods 100 are arranged in parallel in the same horizontal plane, and the spiral cutting edges of the two spiral cutter rods 100 are rotated in opposite directions. The same end of the two spiral cutter rods 100 is coaxially fixedly connected to a positioning cone head 101, and the other ends of the two spiral cutter rods 100 are rotatably connected to a rotary head 102; Figure 6 and Figure 7 As shown, two positioning cone heads 101 are matched with diamond-shaped pressing blocks 103 and inserted at the diagonal positions of the pressing blocks 103. The remaining two corners of the pressing blocks 103 are located on the side away from the positioning cone heads 101 and are slidably inserted with long push rods 104. The long push rods 104 are parallel to the spiral cutter rod 100. The ends of the two long push rods 104 away from the spiral cutter rod 100 are fixedly connected with an adapter plate 105. Figure 6 and Fig.10 As shown, one end of the two long push rods 104 located between the spiral cutter rod 100 is fixedly connected to a push plate 106, and the long push rod 104 is located between the adapter plate 105 and the pressure block 103 and is also sleeved with a spring 107; Figure 4 and Figure 5 As shown, the ends of the two screw heads 102 away from the screw cutter rod 100 are coaxially plugged with short push rods 108, and the short push rods 108 are only allowed to move along the axial direction of the screw heads 102. The two short push rods 108 are slidably plugged with a support 109, and the two short push rods 108 are located on the side of the support 109 away from the screw cutter rod 100. The two gears 110 are equal in diameter and are matched and meshed with each other; as shown in FIG. Figure 8 , Fig. 9 and Fig.11As shown, the circumferential walls of the two rotating heads 102 are fixedly connected with the limiting blocks 111 along their radial direction, the limiting blocks 111 are located near one end of the spiral cutter rod 100 and are elastically hinged with the rotating head 102, and the limiting blocks 111 are arranged along the radial direction of the rotating head 102 when they are ejected, and the length of a single limiting block 111 is greater than the shortest distance between the two rotating heads 102, and the two limiting blocks 111 are symmetrically distributed about the long push rod 104, and when the ends of the two limiting blocks 111 conflict with each other, the push plate 106 has air avoidance grooves 106a extending therethrough corresponding to the two conflicting limiting blocks 111.

[0034] Specifically, Figure 2 and Figure 3 As shown, a cylinder 200 is arranged in parallel on one side of the spiral cutter rod 100, and the effective stroke of the cylinder 200 is greater than the length of the spiral cutter rod 100, the piston rod of the cylinder 200 is fixedly connected to the adapter plate 105, and two short push rods 108 are located at one end of the gear 110 and a cylinder 300 is arranged, and the end of the piston rod of the cylinder 300 is connected to the adapter plate 201, and the adapter plate 201 is rotatably connected to the two short push rods 108, and a motor 400 is arranged on one side of the cylinder 300, and the output shaft of the motor 400 is parallel to the spiral cutter rod 100, and the output shaft of the motor 400 is fixedly connected to the gear 110, and the gear 110 is meshed with the gear 110 on a short push rod 108, and the motor 400 is a stepping motor, and the support 109, the cylinder body of the cylinder 200, the cylinder body of the cylinder 300 and the motor 400 are relatively stationary, as shown in FIG. Figure 5 and Fig.10 As shown, the short push rod 108 is provided with a hexagonal magnetic column 108a which is magnetically plugged into the rotary head 102, the cylinder 1 200 is provided with a single piston rod, and the cylinder 2 300 is provided with a double piston rod.

[0035] Further, such as Figure 5 As shown, a plane thrust bearing 302 is further provided between the adapter plate 301 and the short push rod 108, an angular contact bearing 112 is provided between the end of the spiral cutter rod 100 and the spiral head 102, and the outer ring of the angular contact bearing 112 is fixedly sleeved with the spiral cutter rod 100, and the inner ring of the angular contact bearing 112 is fixedly sleeved with the cylindrical protrusion of the spiral head 102, and the assembly method of the angular contact bearing 112 is DB back-to-back assembly, as shown in FIG. Figure 7 As shown, the side wall of the pressing block 103 is provided with a tapered hole 103a, and the inner wall of the tapered hole 103a is fitted and sleeved with the outer wall of the positioning cone head 101, and the positioning cone head 101 penetrates the pressing block 103, and the spiral cutter rod 100 penetrates the push plate 106 without contact, as shown in FIG. Figure 8 As shown, the outer diameter of the screw head 102 is equal to the outer diameter of the short push rod 108 , and the two screw cutter rods 100 are jointly sleeved with a single workpiece 500 , and one side of the workpiece 500 is attached to the side of the push plate 106 away from the adapter plate 105 .

[0036] The working principle and advantages of the device are further explained in combination with the existing technology: in the past, when the casting effect of small parts was poor, there was often a lot of material residue in the casting hole, and it was necessary to use processing equipment to remove a lot of excess material to accurately adjust the casting hole diameter. However, the current small part casting and small part die-casting technologies are mature, so that the inner wall of the miter saw bracket hole no longer requires a lot of cutting processing, only fine finishing is required, so the traditional bulky and complex multi-hole drilling machine is no longer applicable in some fields.

[0037] The present invention mainly provides a finishing device for the holes of a miter saw bracket. Different from the existing multi-hole drilling machine, the device is provided with a pair of spiral cutter rods 100 for reaming holes. However, the spiral cutter rods 100 do not move during processing, and the push plate 106 pushes the workpiece 500 to move along the spiral guide rod. The spiral cutting edge on the spiral cutter rod 100 is used to scrape off the residual material on the hole wall of the workpiece 500. Since the spiral cutter rod 100 no longer rotates like the drill bit of a conventional drilling machine, the length of the spiral cutter rod 100 is longer than that of a conventional drill bit to ensure that the hole wall of the workpiece 500 is processed in place.

[0038] The device is mainly composed of three parts: a spiral cutter rod 100, a pushing structure and a blanking structure. The spiral cutter rod 100 is responsible for cutting processing. The pushing structure is composed of a cylinder 200, an adapter plate 105, a long push rod 104, a spring 107, a pressure block 103 and a push plate 106, and is responsible for pushing the workpiece 500 along the spiral cutter rod 100. The blanking structure is composed of a rotary head 102, a short push rod 108, a support 109, a gear 110, a cylinder 300, etc., and is responsible for taking over the workpiece 500 from the pushing structure and the spiral blade and allowing the processed workpiece 500 to fall.

[0039] To achieve the above functional purpose, the device involves the following technical details:

[0040] First, regarding the structural relationship between the spiral cutter bar 100 and the pusher structure and the unloading mechanism during the processing, such as Figure 1 and Figure 2As shown, when the piston rod of the cylinder 200 is fully extended, the spring 107 is extended to make the pressure block 103 contact the push plate 106, and the pressure block 103 and the push plate 106 are separated from the positioning cone head 101. After the workpiece 500 is sleeved on the positioning cone head 101, the cylinder 200 is reset, so that the push plate 106 sleeves the spiral cutter rod 100 and forcibly pushes the workpiece 500. The workpiece 500 moves relative to the spiral cutter rod 100 to perform hole processing. When the push plate 106 enters the positioning cone head 101, the pressure block 103 is sleeved with the positioning cone head 101 through the tapered hole 103a thereon. As the piston rod of the cylinder 200 continues to shrink, the adapter plate 105 continues to move toward the spiral cutter rod 101. The tool rod 100 pushes the long push rod 104, the push plate 106 and the workpiece 500 in the same direction, and the spring 107 on the long push rod 104 is gradually compressed to press the pressure block 103 onto the positioning cone head 101. Since the blade diameter of the spiral tool rod 100 at one end of the positioning cone head 101 is smaller than the blade diameter at the other end, and the blade diameter changes smoothly, the processing load between the spiral tool rod 100 and the workpiece 500 is gradually increased, and the compression amount of the spring 107 is proportional to the processing load, that is, when the processing load is large, the pressure provided by the spring 107 is also large, and the pressure block 103 can better stabilize the spiral tool rod 100 through the positioning cone head 101; Figure 3 As shown, the other end of the spiral cutter bar 100 is supported by the cylinder 2 300 and the short push rod 108, and the support 109 stabilizes the support direction of the short push rod 108, and the spring 107 and the pressure block 103 are used to clamp the spiral cutter bar 100, so that the processing process of the workpiece 500 is accurate and stable;

[0041] Secondly, regarding the structural relationship between the spiral cutter bar 100 and the pusher structure and the unloading mechanism after the workpiece 500 is processed, as shown in FIG. Figure 6 As shown, the workpiece 500 is pushed through the entire spiral cutter bar 100, the push plate 106 enters the screw head 102, and the workpiece 500 is pushed between the screw head 102 and the support 109 and sleeved on the short push rod 108. Fig.11 As shown, when the workpiece 500 passes through the limit block 111, the limit block 111 is pressed back into the groove on the outer wall of the spin head 102, and then popped open again through the rear limit block 111, while the push plate 106 directly passes through the limit block 111 through the air avoidance groove 106a. After the push plate 106 is in place, the motor 400 drives the gear 110 to rotate, and drives the two short push rods 108 to drive the spin head 102 to rotate through the hexagonal magnetic column 108a, thereby deflecting the limit block 111 out of the range of the air avoidance groove 106a. At this time, the supporting force of the cylinder 2 300 on the spiral cutter rod 100 can be removed, the piston rod of the cylinder 2 300 is retracted, and the short push rod 108 is driven to be pulled out of the workpiece 500 through the adapter plate 2 301, as shown in FIG. Fig.10 As shown, at this time, the processed workpiece 500 falls off the equipment;

[0042] After the piston rod of the second cylinder 300 is retracted, the forces on both ends of the spiral cutter rod 100 are as follows: with the spring 107 as the reference system, after the spring 107 is squeezed, it also pushes toward both ends, so that the adapter plate 105, the long push rod 104 and the push plate 106 have a movement tendency opposite to the pressure block 103, so that the pressure block 103 presses one end of the spiral cutter rod 100, and the push plate 106 presses the other end of the spiral cutter rod 100 through the screw head 102 and the limit block 111 on the screw head 102, so that even if the short push rod 108 is separated from the spiral cutter rod 100, the spiral cutter The rod 100 will not be separated from the device. Taking the cylinder 1 200 as the reference system, the cylinder 1 200 and its piston rod, the adapter plate 1 105 and the long push rod 104 are relatively still. Therefore, after the short push rod 108 is separated from the spiral cutter rod 100, the position of the spiral cutter rod 100 will not change. After the cylinder 2 300 drives the short push rod 108 to re-insert the spiral head 102, the motor 400 drives the gear 110 to drive the short push rod 108, the spiral head 102 and its limit block 111 to reset, and the cylinder 1 200 can be reset, waiting for the next workpiece 500 to enter the device;

[0043] It must be noted that the spiral blade rotation directions of the two spiral cutter rods 100 must be opposite. The working principle between the spiral blade rotation directions of the spiral cutter rod 100 and the limit block 111 is that the spiral cutter rod 100 is prohibited from rotating during the processing, and the usually precise mold positioning ejector (equivalent to the positioning cone head 101 in the device) has almost no polygonal design, and is mostly a cone or cone-like assembly structure. One end of the spiral cutter rod 100 of the device also needs to be rotatably connected to the rotary head 102, which makes it difficult to ensure the stability of the spiral cutter rod 100 during the processing. Therefore, the limit block 111 is designed to Figure 8 and Fig.10 For example, the spiral cutter bar 100 on the left is set clockwise, and the one on the right is set counterclockwise. During the processing, when the reaction force of the cutting edge of the spiral cutter bar 100 acts on the spiral cutter bar 100 itself, there is a tendency for the spiral cutter bar 100 to rotate. The spiral cutter bar 100 on the left tends to rotate counterclockwise, while the one on the right tends to rotate clockwise. Figure 8 By having the ends of the two limit blocks 111 contact each other at an appropriate angle, the rotation tendency of the spiral cutter bar 100 can be prevented, avoiding the abnormal processing phenomenon of "letting the cutter go".

[0044] In summary, the device, for the T-shaped bracket of the miter saw, adopts the method of not moving the processing tool and pushing the workpiece 500 for processing, thereby eliminating the need for a high-power spindle motor and using a lighter and cheaper cylinder, which greatly simplifies the structure of the equipment, makes the equipment low in maintenance cost and easier to use.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A machine tool for processing a miter saw support, characterized in that: Comprising a spiral cutter rod (100), wherein two spiral cutter rods (100) are arranged in parallel in the same horizontal plane, and the spiral cutting edges of the two spiral cutter rods (100) have opposite spiral directions, a positioning cone head (101) is coaxially fixedly connected to the same end of the two spiral cutter rods (100), and the other ends of the two spiral cutter rods (100) are rotatably connected to a spiral head (102); The two positioning cone heads (101) are matched with diamond-shaped pressing blocks (103) and inserted at the diagonal positions of the pressing blocks (103); the remaining two corners of the pressing block (103) are slidably inserted with long push rods (104) on the side away from the positioning cone heads (101); and the long push rods (104) are parallel to the spiral cutter rod (100); the ends of the two long push rods (104) away from the spiral cutter rod (100) are fixedly connected to an adapter plate 1 (105); the ends of the two long push rods (104) located between the spiral cutter rod (100) are fixedly connected to a push plate (106); and the long push rods (104) located between the adapter plate 1 (105) and the pressing block (103) are also sleeved with a spring (107); A short push rod (108) is coaxially inserted at one end of the two rotary heads (102) away from the spiral cutter rod (100), and the short push rod (108) is only allowed to move along the axial direction of the rotary heads (102); the two short push rods (108) are slidably inserted into a support (109) together, and a gear (110) is fixedly sleeved on one side of the support (109) away from the spiral cutter rod (100); the two gears (110) have equal diameters and are matched and meshed with each other; The inner part of the peripheral wall of the two rotating heads (102) is sleeved with a limit block (111), the limit block (111) is located at one end close to the spiral cutter rod (100) and is elastically hinged to the rotating head (102), and the limit block (111) is arranged along the radial direction of the rotating head (102) when it is opened, and the length of a single limit block (111) is greater than the shortest distance between the two rotating heads (102), the two limit blocks (111) are symmetrically distributed about the long push rod (104), and when the ends of the two limit blocks (111) collide with each other, the push plate (106) is provided with a clearance groove (106a) penetrating the two limit blocks (111) that collide with each other; A cylinder 1 (200) is arranged in parallel on one side of the spiral cutter rod (100), and the effective stroke of the cylinder 1 (200) is greater than the length of the spiral cutter rod (100). The piston rod of the cylinder 1 (200) is fixedly connected to the adapter plate 1 (105). An angular contact bearing (112) is arranged between the end of the spiral cutter rod (100) and the rotary head (102). The outer ring of the angular contact bearing (112) is fixedly sleeved with the spiral cutter rod (100), and the inner ring of the angular contact bearing (112) is fixedly sleeved with the cylindrical protruding part of the rotary head (102). The angular contact bearing (112) is assembled in a DB back-to-back manner.

2. The machine tool for processing a miter saw stand according to claim 1, characterized in that: The two short push rods (108) are located at one end of the gear (110) and are provided with a second cylinder (300); the end of the piston rod of the second cylinder (300) is connected to a second adapter plate (301); the second adapter plate (301) and the two short push rods (108) are rotatably connected; a plane thrust bearing (302) is also provided between the second adapter plate (301) and the short push rods (108); the short push rods (108) are provided with a hexagonal magnetic column (108a) and are magnetically plugged into the rotary head (102).

3. The machine tool for processing a miter saw stand according to claim 2, characterized in that: A motor (400) is disposed on one side of the second cylinder (300), and an output shaft of the motor (400) is parallel to the spiral cutter rod (100). The output shaft of the motor (400) is fixedly connected to a gear (110), and the gear (110) is meshed with a gear (110) on a short push rod (108).

4. The machine tool for processing a miter saw stand according to claim 3, characterized in that: The first cylinder (200) is provided with a single piston rod, the second cylinder (300) is provided with a double piston rod, and the motor (400) is a stepping motor.

5. The machine tool for processing a miter saw stand according to claim 4, characterized in that: The support (109), the cylinder body of the first cylinder (200), the cylinder body of the second cylinder (300) and the motor (400) are relatively stationary.

6. The machine tool for processing a miter saw stand according to claim 1, characterized in that: A conical hole (103a) is provided on the side wall of the pressing block (103), and the inner wall of the conical hole (103a) is fitted and sleeved with the outer wall of the positioning cone head (101), and the positioning cone head (101) passes through the pressing block (103).

7. The machine tool for processing a miter saw stand according to claim 1, characterized in that: The spiral cutter rod (100) penetrates the push plate (106) without contact, the spiral head (102) and the short push rod (108) have the same outer diameter, the blade diameter of the spiral cutter rod (100) at one end of the positioning cone head (101) is smaller than the blade diameter at the other end, and the blade diameter changes smoothly.

8. The machine tool for processing a miter saw stand according to claim 1, characterized in that: The two spiral cutter rods (100) are jointly sleeved with a single workpiece (500), and one side of the workpiece (500) is in contact with a side of the push plate (106) away from the adapter plate.

Images