Air compressor screw accessories finishing equipment and method

Abstract

The present invention relates to the technical field of compressors, and specifically to a finishing device and method for air compressor screw accessories, comprising: a workpiece to be processed, a vertical milling cutter for processing the workpiece to be processed installed in the middle of a tool seat; an arc-shaped fixed plate is fixedly installed on a horizontal adjustment seat, one end of an arc-shaped guide groove 1 and an arc-shaped guide groove 2 overlap, and a guide member is movably provided through the overlapping part; a rack 1 and a rack 2 are installed on the lower side of the arc-shaped sliding plate, and both are arc-shaped structures, and the center of the rack 1 overlaps with the arc-shaped guide groove 1; the beneficial effect is: by providing an arc-shaped sliding plate on the front side of the arc-shaped fixed plate, when the arc-shaped sliding plate slides, it can drive the vertical milling cutter to rotate around the edge of its lower end to tilt, thereby processing the inner side wall of the spiral groove 2 into an inclined shape, without damaging the groove bottom of the spiral groove 2, and without the need for additional tool replacement, thereby reducing the processing cycle and improving the processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a finishing device and method for screw accessories of an air compressor. Background Art

[0002] The screw rotor of an air compressor is the core moving component of a screw air compressor. Its profile accuracy and surface quality directly affect the energy efficiency and life of the compressor. The current mainstream processing methods in the industry include traditional CNC milling, profile grinding and cyclone milling.

[0003] In the prior art, a Chinese utility model with announcement number CN206764049U discloses an air compressor screw processing device, in which the rotation, cutting, and feed processes of the tool simulate the actual working conditions of the screw and the star wheel. The meshing precision between the formed screw groove surface and the star wheel teeth is high, the sealing performance is good, and the gas production efficiency is high. Therefore, the machine has higher performance and saves energy and reduces emissions.

[0004] However, conventional processing equipment currently requires the use of multiple tools to work together when processing screws. These tools are used to form the spiral groove, widen the spiral groove, and tilt the inner sidewall of the spiral groove. During the processing, the replacement and adjustment of the tools significantly prolongs the processing cycle, resulting in low screw processing efficiency. Therefore, the present invention proposes an air compressor screw component finishing device and method to address the above-mentioned issues. Summary of the Invention

[0005] The purpose of the present invention is to provide an air compressor screw accessories finishing device and method to solve the problem that the traditional processing equipment proposed in the above background technology needs to replace a variety of different tools during use, resulting in a prolonged processing cycle.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an air compressor screw fitting finishing device, comprising:

[0007] A workpiece to be processed, a tool seat is provided above the workpiece to be processed, an end mill for processing the workpiece to be processed is installed in the middle of the tool seat, the tool seat is installed on a sliding table, and one end of the sliding table is fixedly connected to an arc-shaped sliding plate;

[0008] An arc-shaped fixed plate, wherein the arc-shaped fixed plate is fixedly mounted on the horizontal adjustment seat, and the arc-shaped sliding plate is slidably mounted on the front face of the arc-shaped fixed plate. An arc-shaped guide groove 1 and an arc-shaped guide groove 2 are respectively provided on the arc-shaped sliding plate and the arc-shaped fixed plate, and the center of the arc-shaped guide groove 1 and the center of the arc-shaped guide groove 2 respectively coincide with both sides of the lower end of the end mill in the horizontal direction, and one end of the arc-shaped guide groove 1 and the arc-shaped guide groove 2 coincide with each other, and a guide member is movably provided through the coincidence;

[0009] Rack 1 and rack 2 are installed on the lower side of the arc-shaped sliding plate, and both are arc-shaped structures. The center of rack 1 coincides with arc-shaped guide groove 1, and the center of rack 2 coincides with arc-shaped guide groove 2. The inner sides of rack 1 and rack 2 are respectively engaged with gear 2 and gear 1 that drive them to rotate.

[0010] Preferably, the arc guide groove 1 and the arc guide groove 2 are each arranged in groups of two, and the arc guide groove 1 and the arc guide groove 2 are each arranged in two groups, the guide member includes two shaft rods in a group, and the guide member is arranged in two groups, the width dimension of the arc guide groove 1, the width dimension of the arc guide groove 2 and the diameter dimension of the shaft rod on the guide member are consistent, and the arc sliding plate is kept in contact with the arc fixed plate.

[0011] Preferably, avoidance grooves are provided on both the front and back surfaces of the arc-shaped sliding plate and the arc-shaped fixed plate, and the arc-shaped guide groove 1 and the arc-shaped guide groove 2 correspond to the avoidance grooves, anti-slip plates are fixed at both ends of the guide member, a positioning block is fixed at the middle part of the guide member, and the positioning block is composed of two anti-slip plates fixedly connected to each other, the two anti-slip plates are respectively located in the inner cavity of the avoidance groove on one side away from each other of the arc-shaped sliding plate and the arc-shaped fixed plate, and the positioning block is located in the inner cavity of the avoidance groove on one side close to each other of the arc-shaped sliding plate and the arc-shaped fixed plate.

[0012] Preferably, arc-shaped mounting plates are fixed on the lower sides of both ends of the arc-shaped sliding plate, and the two arc-shaped mounting plates are coplanar, the rack one and rack two are fixedly connected to the two arc-shaped mounting plates respectively, and the rack one and rack two are respectively located on both sides of the arc-shaped mounting plates, and the central angle of the tooth groove on the rack one, the central angle of the tooth groove on the rack two, the central angle of the arc-shaped guide groove one, and the central angle of the arc-shaped guide groove two are the same.

[0013] Preferably, a connecting plate is fixedly provided on the lower side of the arc-shaped fixed plate, and the gear 1 and gear 2 are both rotatably mounted on one side of the connecting plate through a rotating shaft, a worm gear 1 is fixed on one side of the gear 1, and a worm gear 2 is fixed on one side of the gear 2, and the worm gear 1 and worm gear 2 are coplanar, and a transmission worm is rotatably mounted on one side of the connecting plate, and the worm gear 1 and worm gear 2 respectively maintain meshing transmission with the two ends of the transmission worm.

[0014] Preferably, the outer sides of both ends of the transmission worm are provided with positioning seats, and the positioning seats are fixedly connected to the connecting plate. The middle fixed sleeve of the transmission worm is provided with a driven pulley, and the outer side of the driven pulley is connected to the driving pulley through a belt drive. The driving pulley is driven to rotate by a driving motor, and the driving motor is fixed on the mounting vertical plate, and the mounting vertical plate is fixedly connected to the connecting plate.

[0015] Preferably, a notch groove is provided at the corner of one end of the arc-shaped sliding plate, a boss is fixed to the middle of the arc-shaped sliding plate, and the boss and the sliding table are fixedly connected by multiple bolts, and a main shaft chuck and a secondary shaft chuck are respectively provided at both ends of the workpiece to be processed, and the main shaft chuck and the secondary shaft chuck are both provided with three-jaw clamps, and two groups of three-jaw clamps respectively clamp and position the two ends of the workpiece to be processed.

[0016] A processing method according to the above-mentioned air compressor screw parts finishing equipment specifically comprises the following steps:

[0017] Step 1: The end mill moves horizontally and the workpiece rotates, and the lower end of the end mill cuts the workpiece, and the end mill forms a spiral groove 1 on the workpiece;

[0018] Step 2: horizontally adjust the position of the end mill, then move the end mill in the opposite direction and rotate the workpiece in the opposite direction, so that the end mill forms a second spiral groove on the workpiece;

[0019] Step 3: Slide the arc-shaped sliding plate and drive the end mill to tilt to one side. The end mill moves horizontally again, and the workpiece rotates again. The end mill forms an inclined shape on the inner wall of one side of the spiral groove 2.

[0020] Step 4: Rotate the end mill to a vertical position and cut the bottom of spiral groove 1 so that the bottom of spiral groove 1 is flush with the bottom of spiral groove 2;

[0021] Step 5: Slide the arc-shaped sliding plate in the opposite direction and drive the end mill to tilt to the other side. The end mill forms an inclined shape on the inner wall of one side of the spiral groove.

[0022] Preferably, in step three and step five, the sliding direction of the arc-shaped sliding plate is controlled by the forward and reverse rotation of the transmission worm. When the transmission worm rotates forward, the transmission worm drives gear one and gear two to rotate forward synchronously, gear one is engaged with rack two, and gear two is disengaged from rack one, and the arc-shaped sliding plate rotates and slides in the forward direction around the center of rack two. When the transmission worm rotates reversely, the transmission worm drives gear one and gear two to rotate reversely synchronously, gear one is disengaged from rack two, and gear two is engaged with rack one, and the arc-shaped sliding plate rotates and slides in the reverse direction around the center of rack one.

[0023] Preferably, in steps three and five, the supporting force of the arc-shaped sliding plate when sliding is provided by the guide member. When the arc-shaped sliding plate rotates and slides in the forward direction, the arc-shaped sliding plate drives the guide member to move at the same time, and the guide member slides along the inner cavity of the second arc-shaped guide groove. When the arc-shaped sliding plate rotates and slides in the reverse direction, the position of the guide member is fixed, and the guide member slides relative to the arc-shaped sliding plate along the inner cavity of the first arc-shaped guide groove.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides an arc-shaped sliding plate on the front side of the arc-shaped fixed plate, and arc-shaped guide groove 1 and arc-shaped guide groove 2 are respectively provided on the surfaces of the arc-shaped sliding plate and the arc-shaped fixed plate, and the centers of the arc-shaped guide groove 1 and the arc-shaped guide groove 2 are staggered with each other. The arc-shaped sliding plate and the arc-shaped fixed plate are kept in sliding connection by a guide member. When the arc-shaped sliding plate slides, it can drive the end mill to rotate around the edge of its lower end to tilt, thereby processing the inner side wall of the spiral groove 2 into an inclined shape, without damaging the bottom of the spiral groove 2, and without the need for additional tool replacement, thereby reducing the processing cycle and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0028] Figure 3 This is an exploded schematic diagram of the arc-shaped sliding plate and the arc-shaped fixed plate structure of the present invention;

[0029] Figure 4 This is a schematic three-dimensional diagram of the guide structure of the present invention;

[0030] Figure 5 This is a front view of the arc-shaped sliding plate structure of the present invention;

[0031] Figure 6 This is a schematic cross-sectional view of the guide structure in the figure of the present invention;

[0032] Figure 7 This is a three-dimensional schematic diagram of the arc-shaped sliding plate structure of the present invention;

[0033] Figure 8 This is a schematic diagram of the structural position distribution of gear 1 and gear 2 of the present invention;

[0034] Figure 9 Schematic diagram of cutting workpiece by the end mill of the present invention;

[0035] Figure 10 This is a clockwise tilted schematic diagram of the end mill structure of the present invention;

[0036] Figure 11 Schematic diagram of the counterclockwise tilt of the end mill structure of the present invention.

[0037] In the figure: 1. workpiece to be processed; 11. Spiral groove 1; 12. Spiral groove 2; 2. Tool holder; 21. End mill; 3. Sliding table; 4. Arc sliding plate; 41. Arc guide groove 1; 42. Avoidance groove; 43. Arc mounting plate; 44. Rack 1; 45. Rack 2; 46. Boss; 47. Notch groove; 5. Arc fixing plate; 51. Arc guide groove 2; 52. Connecting plate; 53. Gear 1; 531. Worm gear 1; 54. Gear 2; 541. Worm gear 2; 55. Transmission worm; 551. Positioning seat; 552. Driven pulley; 56. Driving motor; 561. Mounting vertical plate; 562. Active pulley; 6. Horizontal adjustment seat; 7. Guide member; 71. Anti-slip plate; 72. Positioning block; 8. Spindle chuck; 81. Sub-shaft chuck; 82. Three-jaw fixture. DETAILED DESCRIPTION

[0038] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit 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.

[0039] See also Figures 1 to 11 , the present invention provides a technical solution:

[0040] Embodiment 1, a finishing device for screw accessories of an air compressor, includes: a workpiece 1 to be processed and an arc-shaped fixing plate 5.

[0041] Specifically, a tool holder 2 is provided above the workpiece 1 to be processed, and an end mill 21 for processing the workpiece 1 to be processed is installed in the middle of the tool holder 2. After the tool holder 2 fixes the end mill 21, the tool holder 2 is driven by an external motor to rotate at high speed. When the tool holder 2 is close to the workpiece 1 to be processed, the surface of the workpiece 1 to be processed can be cut. The tool holder 2 is installed on a sliding table 3, and one end of the sliding table 3 is fixedly connected to an arc-shaped sliding plate 4. When the arc-shaped sliding plate 4 moves, it can drive the sliding table 3, the tool holder 2 and the end mill 21 to move accordingly;

[0042] Furthermore, the arc-shaped fixed plate 5 is fixedly mounted on the horizontal adjustment seat 6, and the horizontal adjustment seat 6 itself can move in the horizontal and vertical directions. The movement of the horizontal adjustment seat 6 is driven by a screw or cylinder known in the prior art, which will not be described in detail here. The arc-shaped sliding plate 4 is slidably mounted on the front of the arc-shaped fixed plate 5. When the horizontal adjustment seat 6 moves, it is used to adjust the vertical or horizontal position of the end mill 21. When the arc-shaped sliding plate 4 slides, it is used to adjust the inclination angle of the end mill 21. An arc-shaped guide groove 1 41 and an arc-shaped guide groove 2 51 are respectively provided on the arc-shaped sliding plate 4 and the arc-shaped fixed plate 5, and the center of the arc-shaped guide groove 1 41 and the center of the arc-shaped guide groove 2 51 coincide with the two sides of the lower end of the end mill 21 in the horizontal direction, as shown in FIG. Figure 6 As shown, the arc guide groove 2 51 and the arc guide groove 1 41 are used to guide the positive clockwise rotation and sliding of the arc sliding plate 4 and the reverse counterclockwise rotation and sliding of the arc sliding plate 4, respectively. Figure 1 and Figure 9 As shown, when the arc-shaped sliding plate 4 rotates and slides in the clockwise direction, the arc-shaped sliding plate 4 can drive the end mill 21 to rotate clockwise around the end point on the right side of its lower end. Conversely, when the arc-shaped sliding plate 4 rotates and slides in the counterclockwise direction, the arc-shaped sliding plate 4 can drive the end mill 21 to rotate counterclockwise around the end point on the left side of its lower end. The advantage of this design is that when the end mill 21 rotates and tilts, the lower end face of the end mill 21 can be staggered with the original lower end face, thereby preventing the lower end face of the end mill 21 from damaging the bottom of the spiral groove originally machined during subsequent cutting. The arc-shaped guide groove 1 41 and the arc-shaped guide groove 2 51 have one end overlapped, and a guide part 7 is movably provided through the overlapped part. The guide part 7 can slide alone in the inner cavity of the arc-shaped guide groove 1 41 along the length direction of the arc-shaped guide groove 1 41, or slide alone in the inner cavity of the arc-shaped guide groove 1 41 along the length direction of the arc-shaped guide groove 1 41, or slide alone in the inner cavity of the arc-shaped guide groove 1 The inner cavity of the second arc-shaped guide groove 51 slides along the length direction of the second arc-shaped guide groove 51, and because the guide member 7 coincides with the arc-shaped guide groove 1 41 and one end of the second arc-shaped guide groove 51 at the same time, when the arc-shaped sliding plate 4 rotates and slides in the forward clockwise direction, the arc-shaped sliding plate 4 can drive the guide member 7 to slide accordingly, and at this time the guide member 7 just slides in the inner cavity of the second arc-shaped guide groove 51; on the contrary, when the arc-shaped sliding plate 4 rotates and slides in the reverse counterclockwise direction, the guide member 7 cannot slide counterclockwise in the inner cavity of the second arc-shaped guide groove 51, but the guide member 7 can slide relative to the inner cavity of the first arc-shaped guide groove 41 and the first arc-shaped guide groove 41. Therefore, no matter whether the arc-shaped sliding plate 4 rotates and slides in the forward or reverse direction, the guide member 7 can guide it, and after the arc-shaped sliding plate 4 stops sliding, the guide member 7 can support the arc-shaped sliding plate 4;

[0043] Secondly, rack 1 44 and rack 2 45 are installed on the lower side of the arc-shaped sliding plate 4, and both are arc-shaped structures. The center of rack 1 44 coincides with arc-shaped guide groove 1 41, and the center of rack 2 45 coincides with arc-shaped guide groove 2 51. The inner sides of rack 1 44 and rack 2 45 are respectively meshed with gear 2 54 and gear 1 53 that drive them to rotate. When gear 1 53 and gear 2 54 rotate synchronously in the forward direction, gear 1 53 will mesh with rack 2 45, and gear 2 54 will mesh with rack 1 4 4 is separated, so the gear 1 53 can drive the arc-shaped sliding plate 4 to rotate and slide in the positive clockwise direction around the center of the arc-shaped guide groove 1 51 by meshing with the rack 2 45; on the contrary, when the gear 1 53 and the gear 2 54 rotate synchronously in the opposite direction, the gear 1 53 will be separated from the rack 2 45, and the gear 2 54 will be meshed with the rack 1 44. At this time, the meshing transmission of the gear 2 54 and the rack 1 44 can drive the arc-shaped sliding plate 4 to rotate and slide in the opposite counterclockwise direction around the center of the arc-shaped guide groove 1 41;

[0044] In summary, combined with Figure 9 As shown, when the end mill 21 is tilted clockwise (i.e. tilted to the right), the rotation center of the end mill 21 is the endpoint on the right side of its lower end. Conversely, when the end mill 21 is tilted counterclockwise (i.e. tilted to the left), the rotation center of the end mill 21 is the endpoint on the left side of its lower end. Figure 10 and Figure 11 It can be seen that the end mill 21 can cut the inner walls of the left and right sides of the spiral groove to form an inclined structure by tilting to the left and right sides, thereby ensuring better sealing between two adjacent workpieces 1 when the workpieces 1 are subsequently used.

[0045] In order to improve the positioning effect of the arc sliding plate 4, the arc guide groove 1 41 and the arc guide groove 2 51 of the present application are each set to two in a group, and the arc guide groove 1 41 and the arc guide groove 2 51 are each set to two groups, the guide member 7 includes two shafts in a group, and the guide member 7 is set to two groups, and the two groups of guide members 7 can be used to position the arc sliding plate 4 to prevent the arc sliding plate 4 from rotating around the single shaft on the guide member 7, and the two groups of guide members 7 can share the gravity of the arc sliding plate 4, reducing the possibility of damage to the guide member 7. Secondly, the width dimension of the arc guide groove 1 41, the width dimension of the arc guide groove 2 51 and the diameter dimension of the shaft on the guide member 7 are consistent, and the arc sliding plate 4 and the arc fixed plate 5 remain in contact, that is, the guide member 7 in the inner cavity of the arc guide groove 1 41 and the arc guide groove 2 51 will not affect the support and positioning effect of the arc sliding plate 4 due to shaking.

[0046] In order to prevent the guide member 7 from tilting, the present application also has avoidance grooves 42 on both the front and back sides of the arc-shaped sliding plate 4 and the arc-shaped fixed plate 5, and the arc-shaped guide groove 1 41 and the arc-shaped guide groove 2 51 correspond to the avoidance groove 42, and anti-slip plates 71 are fixed at both ends of the guide member 7, and a positioning block 72 is fixed at the middle of the guide member 7, and the positioning block 72 is composed of two anti-slip plates 71 fixedly connected to each other, and the two anti-slip plates 71 are respectively located in the inner cavity of the avoidance groove 42 on one side of the arc-shaped sliding plate 4 and the arc-shaped fixed plate 5 away from each other, and the positioning block 72 is located in the inner cavity of the avoidance groove 42 on one side of the arc-shaped sliding plate 4 and the arc-shaped fixed plate 5 close to each other. Figure 3 、 Figure 4 and Figure 5 As shown, the anti-slip plate 71 and the positioning block 72 are mainly used to cooperate with the avoidance groove 42, so as to limit the guide member 7 and prevent the guide member 7 from tilting. The guide member 7 itself always remains perpendicular to the arc-shaped sliding plate 4 and the arc-shaped fixed plate 5. At the same time, the anti-slip plate 71 can also limit the arc-shaped sliding plate 4 and the arc-shaped fixed plate 5, so that the arc-shaped sliding plate 4 and the arc-shaped fixed plate 5 always remain in a fitted state and the two will not separate from each other.

[0047] In order to avoid motion interference between gear 1 53, gear 2 54, rack 1 44 and rack 2 45, the present application also has arc-shaped mounting plates 43 fixed on the lower sides of both ends of the arc-shaped sliding plate 4, and the two arc-shaped mounting plates 43 are coplanar, rack 1 44 and rack 2 45 are respectively fixedly connected to the two arc-shaped mounting plates 43, and rack 1 44 and rack 2 45 are respectively located on both sides of the arc-shaped mounting plates 43. Figure 7 As shown, rack 1 44 and rack 2 45 are staggered with each other, and then combined with Figure 5 As shown, gear 1 53 and gear 2 54 are also staggered with each other. Therefore, no matter whether the arc-shaped sliding plate 4 rotates and slides clockwise or counterclockwise, gear 1 53 will not interfere with the motion of rack 1 44, and gear 2 54 will not interfere with the motion of rack 2 45. The central angle of the tooth groove on rack 1 44, the central angle of the tooth groove on rack 2 45, the central angle of the arc-shaped guide groove 1 41, and the central angle of the arc-shaped guide groove 2 51 are the same. Rack 1 44, rack 2 45, arc-shaped guide groove 1 41 and arc-shaped guide groove 2 51 can all be used to limit the rotation and sliding angle of the arc-shaped sliding plate 4 to ensure that the position of the arc-shaped sliding plate 4 can remain stable when it rotates and slides to the maximum stroke.

[0048] In order to drive the arc-shaped sliding plate 4 to rotate and slide, and to stably position it, the present application also has a connecting plate 52 fixedly provided on the lower side of the arc-shaped fixed plate 5, and gear 1 53 and gear 2 54 are both rotatably installed on one side of the connecting plate 52 through a rotating shaft, and gear 1 53 and gear 2 54 themselves can maintain a stable position, gear 1 53 is always tangent to the circle where rack 2 45 is located, and gear 2 54 is always tangent to the circle where rack 1 44 is located, and a worm gear 1 531 is fixed on one side of gear 1 53, and a worm gear 2 541 is fixed on one side of gear 2 54, and the worm gear 1 531 and the worm gear 2 541 are coplanar, and a transmission worm 55 is rotatably installed on one side of the connecting plate 52, and the worm gear 1 531 and the worm gear 2 541 are respectively engaged with the two ends of the transmission worm 55 for transmission, as shown in FIG. Figure 8 As shown, when the transmission worm 55 rotates, it can drive the worm gear 1 531 and the worm gear 2 541 to rotate at the same time, so the gear 1 53 and the gear 2 54 always rotate synchronously in the same direction. In addition, since the meshing transmission of the transmission worm 55 to the worm gear 1 531 and the meshing transmission of the transmission worm 55 to the worm gear 2 541 are both unidirectional, when the transmission worm 55 stops rotating, the worm gear 1 531 and the worm gear 2 541 can both stop rotating at the same time and will not easily rotate or shake. Therefore, after the transmission worm 55 of the device stops rotating, the arc-shaped sliding plate 4 can maintain a stable position and will not easily rotate and deviate.

[0049] In order to drive the transmission worm 55 to rotate, the present application also has positioning seats 551 movably sleeved on the outer sides of both ends of the transmission worm 55, and the positioning seats 551 are fixedly connected to the connecting plate 52. The setting of the positioning seats 551 is mainly used to install and position the transmission worm 55. A driven pulley 552 is fixedly sleeved in the middle of the transmission worm 55. The outer side of the driven pulley 552 is connected to the active pulley 562 through a belt drive. The active pulley 562 is driven to rotate by the driving motor 56. The driving motor 56 is fixed on the mounting vertical plate 561, and the mounting vertical plate 561 is fixed to the connecting plate 52. The driving motor 56 is connected with the driven pulley 562 to rotate when the driving motor 56 is working. The driving pulley 562 drives the driven pulley 552 to rotate through the transmission belt, thereby providing power for the rotation of the transmission worm 55. In addition, it should be noted that the transmission structure composed of the driven pulley 552, the driving pulley 562 and the transmission belt can also be replaced by the transmission structure of the sprocket and chain known in the prior art, or by the meshing transmission structure of gears and gears. The embodiment of this application only provides an implementation method for driving the transmission worm 55 to rotate, which will not be repeated here.

[0050] In order to clamp and position the workpiece 1, the present application also has a notch groove 47 at the corner of one end of the arc-shaped sliding plate 4, which is used to reduce the overall weight of the arc-shaped sliding plate 4 and partially expose the arc-shaped fixed plate 5 so that the staff can observe the relative position between the arc-shaped fixed plate 5 and the arc-shaped sliding plate 4. A boss 46 is fixed in the middle of the arc-shaped sliding plate 4, and the boss 46 and the sliding table 3 are fixedly connected by multiple bolts, thereby ensuring that the sliding table 3 can move synchronously with the arc-shaped sliding plate 4. A main shaft chuck 8 and a secondary shaft chuck 81 are respectively provided at both ends of the workpiece 1. The main shaft chuck 8 and the secondary shaft chuck 81 are both provided with three-jaw clamps 82. The two sets of three-jaw clamps 82 clamp and position the two ends of the workpiece 1 respectively, thereby realizing the clamping and positioning of the workpiece 1, and the main shaft chuck 8 and the secondary shaft chuck 81 can drive the workpiece 1 to rotate when they rotate.

[0051] The present invention also provides a processing method according to the above-mentioned air compressor screw fitting finishing equipment, which specifically comprises the following steps:

[0052] Step 1: The end mill 21 moves horizontally and the workpiece 1 rotates. The lower end of the end mill 21 cuts the workpiece 1, and the end mill 21 forms a spiral groove 11 on the workpiece 1.

[0053] Step 2: horizontally adjust the position of the end mill 21, then move the end mill 21 in the reverse direction and rotate the workpiece 1 in the reverse direction, so that the end mill 21 forms a spiral groove 12 on the workpiece 1;

[0054] Step 3: Slide the arc-shaped sliding plate 4 and drive the end mill 21 to tilt to one side. The end mill 21 moves horizontally again, and the workpiece 1 rotates again. The end mill 21 forms an inclined shape on the inner wall of one side of the spiral groove 12;

[0055] Step 4: Rotate the end mill 21 to a vertical position and cut the bottom of the spiral groove 11 so that the bottom of the spiral groove 11 is flush with the bottom of the spiral groove 2 12;

[0056] Step 5: Slide the arc-shaped sliding plate 4 in the opposite direction and drive the end mill 21 to tilt toward the other side. The end mill 21 forms an inner wall of one side of the spiral groove 11 into an inclined shape.

[0057] In order to supplement the direction of rotation and sliding of the arc-shaped sliding plate 4, the present application also has the following features: in step three and step five, the sliding direction of the arc-shaped sliding plate 4 is controlled by the forward and reverse rotation of the transmission worm 55; when the transmission worm 55 rotates forward, the transmission worm 55 drives gear one 53 and gear two 54 to rotate forward synchronously, gear one 53 engages with rack two 45, and gear two 54 disengages from rack one 44, and the arc-shaped sliding plate 4 rotates and slides forward around the center of the circle of rack two 45; when the transmission worm 55 reverses, the transmission worm 55 drives gear one 53 and gear two 54 to reverse synchronously, gear one 53 disengages from rack two 45, and gear two 54 engages with rack one 44, and the arc-shaped sliding plate 4 rotates and slides in the opposite direction around the center of the circle of rack one 44.

[0058] In order to provide support for the arc-shaped sliding plate 4 when the arc-shaped sliding plate 4 rotates and slides, the present application also has the following features: in step three and step five, the support force of the arc-shaped sliding plate 4 when sliding is provided by the guide member 7; when the arc-shaped sliding plate 4 rotates and slides in the forward direction, the arc-shaped sliding plate 4 drives the guide member 7 to move at the same time, and the guide member 7 slides along the inner cavity of the arc-shaped guide groove 2 51; when the arc-shaped sliding plate 4 rotates and slides in the reverse direction, the position of the guide member 7 is fixed, and the guide member 7 slides relative to the arc-shaped sliding plate 4 along the inner cavity of the arc-shaped guide groove 1 41.

[0059] 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. An air compressor screw parts finishing equipment, characterized by: include: A workpiece to be processed (1), a tool seat (2) is provided above the workpiece to be processed (1), a vertical milling cutter (21) for processing the workpiece to be processed (1) is installed in the middle of the tool seat (2), the tool seat (2) is installed on a sliding table (3), and one end of the sliding table (3) is fixedly connected to an arc-shaped sliding plate (4); An arc-shaped fixed plate (5), wherein the arc-shaped fixed plate (5) is fixedly mounted on the horizontal adjustment seat (6), and the arc-shaped sliding plate (4) is slidably mounted on the front surface of the arc-shaped fixed plate (5), wherein the arc-shaped sliding plate (4) and the arc-shaped fixed plate (5) are respectively provided with an arc-shaped guide groove 1 (41) and an arc-shaped guide groove 2 (51), and the center of the arc-shaped guide groove 1 (41) and the center of the arc-shaped guide groove 2 (51) respectively coincide with both sides of the lower end of the end mill (21) in the horizontal direction, and one end of the arc-shaped guide groove 1 (41) and the arc-shaped guide groove 2 (51) coincide with each other, and a guide member (7) is movably provided through the coincidence; The lower side of the arc-shaped sliding plate (4) is equipped with a rack 1 (44) and a rack 2 (45), and both are arc-shaped structures. The center of the circle of the rack 1 (44) coincides with the arc-shaped guide groove 1 (41), and the center of the circle of the rack 2 (45) coincides with the arc-shaped guide groove 2 (51). The inner sides of the rack 1 (44) and the rack 2 (45) are respectively engaged with a gear 2 (54) and a gear 1 (53) for driving them to rotate.

2. The air compressor screw parts finishing equipment according to claim 1, characterized in that: The arc-shaped guide groove 1 (41) and the arc-shaped guide groove 2 (51) are both arranged in groups of two, and the arc-shaped guide groove 1 (41) and the arc-shaped guide groove 2 (51) are both arranged in two groups. The guide member (7) includes two shafts in a group, and the guide member (7) is arranged in two groups. The width dimension of the arc-shaped guide groove 1 (41), the width dimension of the arc-shaped guide groove 2 (51) and the diameter dimension of the shaft on the guide member (7) are consistent, and the arc-shaped sliding plate (4) and the arc-shaped fixed plate (5) are kept in contact.

3. The air compressor screw parts finishing equipment according to claim 2, characterized in that: The front and back surfaces of the arc-shaped sliding plate (4) and the arc-shaped fixed plate (5) are both provided with avoidance grooves (42), and the arc-shaped guide groove 1 (41) and the arc-shaped guide groove 2 (51) are both corresponding to the avoidance grooves (42). Anti-slip plates (71) are fixed at both ends of the guide member (7), and a positioning block (72) is fixed at the middle of the guide member (7), and the positioning block (72) is composed of two anti-slip plates (71) fixedly connected to each other. The two anti-slip plates (71) are respectively located in the inner cavity of the avoidance groove (42) on a side away from each other of the arc-shaped sliding plate (4) and the arc-shaped fixed plate (5), and the positioning block (72) is located in the inner cavity of the avoidance groove (42) on a side close to each other of the arc-shaped sliding plate (4) and the arc-shaped fixed plate (5).

4. The air compressor screw parts finishing equipment according to claim 3, characterized in that: The lower sides of both ends of the arc-shaped sliding plate (4) are fixed with arc-shaped mounting plates (43), and the two arc-shaped mounting plates (43) are coplanar. The rack 1 (44) and the rack 2 (45) are respectively fixedly connected to the two arc-shaped mounting plates (43), and the rack 1 (44) and the rack 2 (45) are respectively located on both sides of the arc-shaped mounting plates (43). The central angle of the tooth groove of the rack 1 (44), the central angle of the tooth groove of the rack 2 (45), the central angle of the arc-shaped guide groove 1 (41), and the central angle of the arc-shaped guide groove 2 (51) are the same.

5. The air compressor screw parts finishing equipment according to claim 4, characterized in that: A connecting plate (52) is fixedly provided on the lower side of the arc-shaped fixed plate (5), and the gear 1 (53) and the gear 2 (54) are both rotatably mounted on one side of the connecting plate (52) via a rotating shaft. A worm gear 1 (531) is fixed on one side of the gear 1 (53), and a worm gear 2 (541) is fixed on one side of the gear 2 (54). The worm gear 1 (531) and the worm gear 2 (541) are coplanar. A transmission worm (55) is rotatably mounted on one side of the connecting plate (52), and the worm gear 1 (531) and the worm gear 2 (541) respectively maintain meshing transmission with two ends of the transmission worm (55).

6. The air compressor screw parts finishing equipment according to claim 5, characterized in that: Both ends of the transmission worm (55) are movably sleeved with positioning seats (551) on the outside, and the positioning seats (551) are fixedly connected to the connecting plate (52). The middle part of the transmission worm (55) is fixedly sleeved with a driven pulley (552). The outer side of the driven pulley (552) is connected to a driving pulley (562) through a belt drive. The driving pulley (562) is driven to rotate by a driving motor (56). The driving motor (56) is fixed on the mounting vertical plate (561), and the mounting vertical plate (561) is fixedly connected to the connecting plate (52).

7. The air compressor screw component finishing equipment according to claim 6, characterized in that: A notch groove (47) is provided at a corner of one end of the arc-shaped sliding plate (4), a boss (46) is fixed to the middle of the arc-shaped sliding plate (4), and the boss (46) and the sliding table (3) are fixedly connected by a plurality of bolts, and a main shaft chuck (8) and a secondary shaft chuck (81) are respectively provided at both ends of the workpiece (1), and the main shaft chuck (8) and the secondary shaft chuck (81) are both provided with a three-jaw clamp (82), and two groups of three-jaw clamps (82) clamp and position the two ends of the workpiece (1) respectively.

8. A processing method for the air compressor screw component finishing equipment according to claim 7, characterized in that: The specific steps include: Step 1: The end mill (21) moves horizontally and the workpiece (1) rotates, and the lower end of the end mill (21) cuts the workpiece (1), and the end mill (21) forms a spiral groove (11) on the workpiece (1); Step 2: horizontally adjust the position of the end mill (21), then move the end mill (21) in the reverse direction and rotate the workpiece (1) in the reverse direction, so that the end mill (21) forms a second spiral groove (12) on the workpiece (1); Step 3: Slide the arc-shaped sliding plate (4) and drive the end mill (21) to tilt to one side, the end mill (21) moves horizontally again, and the workpiece (1) rotates again, and the end mill (21) forms an inclined shape on the inner wall of one side of the spiral groove (12); Step 4: Rotate the end mill (21) to a vertical position, and cut the bottom of the spiral groove 1 (11) so that the bottom of the spiral groove 1 (11) is flush with the bottom of the spiral groove 2 (12); Step 5: Slide the arc-shaped sliding plate (4) in the opposite direction and drive the end mill (21) to tilt toward the other side, so that the end mill (21) forms an inner wall of one side of the spiral groove (11) into an inclined shape.

9. The processing method of the air compressor screw component finishing equipment according to claim 8, characterized in that: In the steps 3 and 5, the sliding direction of the arc-shaped sliding plate (4) is controlled by the forward and reverse rotation of the transmission worm (55). When the transmission worm (55) rotates forward, the transmission worm (55) drives the gear 1 (53) and the gear 2 (54) to rotate forward synchronously, the gear 1 (53) is engaged with the rack 2 (45), and the gear 2 (54) is disengaged from the rack 1 (44), and the arc-shaped sliding plate (4) rotates forward and slides around the center of the rack 2 (45). When the transmission worm (55) rotates reversely, the transmission worm (55) drives the gear 1 (53) and the gear 2 (54) to rotate reversely synchronously, the gear 1 (53) is disengaged from the rack 2 (45), and the gear 2 (54) is engaged with the rack 1 (44), and the arc-shaped sliding plate (4) rotates reversely and slides around the center of the rack 1 (44).

10. The processing method of the air compressor screw component finishing equipment according to claim 9, characterized in that: In the steps 3 and 5, the supporting force of the arc-shaped sliding plate (4) when sliding is provided by the guide member (7). When the arc-shaped sliding plate (4) rotates and slides in the forward direction, the arc-shaped sliding plate (4) drives the guide member (7) to move simultaneously, and the guide member (7) slides along the inner cavity of the second arc-shaped guide groove (51). When the arc-shaped sliding plate (4) rotates and slides in the reverse direction, the position of the guide member (7) is fixed, and the guide member (7) slides relative to the arc-shaped sliding plate (4) along the inner cavity of the first arc-shaped guide groove (41).

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