A kind of equipment for grinding the residual material of the parting surface of air compressor valve casting
By using a combination of coarse grinding wheel and fine grinding sheet in the air compressor valve casting parting surface residual material grinding equipment, combining the positioning assembly and limiting parts, rapid replacement and efficient grinding are achieved, and the grinding head in the prior art is solved The problem of difficulty in replacement and inefficiency improves work efficiency and fine grinding effect.
Patent Information
- Application Number
- CN202411178046.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2044-08-27
AI Technical Summary
In the prior art, it is difficult to replace the grinding head of residual material in the valve casting cavity of the air compressor, resulting in low grinding work efficiency and easy to contact the inner wall of the valve casting during rotation replacement, affecting the accuracy.
A kind of surface residual material grinding equipment for valve castings of air compressors was designed. By setting up coarse grinding wheels and fine grinding pieces, the replacing components and limiting parts were used to realize the coverage and rapid replacement of fine grinding wheels by the coarse grinding wheels, reducing replacement. Time, efficiency is improved, and through limiting components and slot and card block structure, it ensures replacement and stability of thick and fine polishing effects in a narrow space.
It effectively solves the problem of difficult replacement of grinding heads, improves grinding work efficiency, reduces the activity trajectory of fine grinding pieces, improves fine grinding efficiency, and achieves rapid replacement and stability in a narrow space, avoiding fine grinding pieces and Coarse grinding wheel contact extends service life.
Smart Images
Figure CN118682605B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of grinding, in particular to a device for grinding excess material on a parting surface of a valve casting of an air compressor. Background Art
[0002] An air compressor is a device for producing compressed air, which controls the flow of gas in the air compressor through valves. Since the valve is produced in the form of a casting, there will be a large amount of excess material at the valve parting surface. These excess materials will affect the performance of the valve and need to be removed. The excess material on the valve parting surface is divided into the excess material inside the cavity and the excess material outside the cavity. The excess material outside the cavity is relatively convenient to remove due to the large operating space, while the excess material inside the cavity is relatively small and difficult to remove. In the prior art, the excess material inside the valve cavity is removed by first fixing the valve, and then contacting the high-speed rotating grinding head with the valve inner cavity parting surface to remove the excess material. Since the valve cavity needs to cooperate with other equipment, the required precision is relatively high. After one grinding is completed, it is necessary to replace the grinding wheel with a larger mesh number for grinding again to improve the matching accuracy. However, the space inside the valve cavity is small. When replacing the grinding head, the grinding head needs to be removed first and then replaced. This results in a cumbersome process for replacing the grinding head, which affects the grinding efficiency.
[0003] In view of the above problems, the prior art provides some solutions. For example, a valve cross-section rapid grinding processing device with publication number CN112222980B is provided. By arranging grinding heads of various specifications in a shift mechanism and then replacing the grinding heads by driving the shift mechanism, the grinding heads can be quickly replaced, thereby achieving the purpose of improving the efficiency of grinding head replacement. However, the grinding heads are replaced by rotating them. In the valve cavity, due to the small space, the grinding heads are easily contacted with the inner wall of the valve casting during rotation replacement, resulting in scratches on the inner wall of the valve, thereby affecting the fitting accuracy of the valve casting.
[0004] Therefore, a device for grinding the residual material of the parting surface of air compressor valve casting is proposed. Summary of the invention
[0005] The purpose of the present invention is to provide a device for grinding the excess material of the parting surface of an air compressor valve casting, which solves the problem of difficulty in replacing the grinding head and thus low grinding efficiency; by covering the surface of a grinding wheel with a smaller mesh number with a grinding wheel with a larger mesh number, and then quickly replacing the grinding head, the purpose of improving efficiency is achieved.
[0006] To achieve the above object, the present invention provides the following technical solutions:
[0007] A device for grinding excess material on the parting surface of an air compressor valve casting, comprising a mounting platform, a clamping frame, a power frame and a rotating platform, wherein the clamping frame is connected to the left side of the upper end of the mounting platform, the power frame is connected to the right side of the upper end of the mounting platform, and the rotating platform is connected to the left side of the power frame, and the rotating platform can be driven to rotate by the power frame, and a valve casting to be ground is placed on the right side of the clamping frame, and further comprising a fixing frame, a limiting member, a transposition assembly, a transmission rod, a coarse grinding wheel, a limiting member, a fine grinding sheet, a hydraulic cylinder and a transmission motor, wherein the fixing frame is connected to the left end of the rotating platform, the limiting member is connected to the left side of the fixing frame, and the transposition assembly The driving rod is connected to the fixed frame, the driving rod is connected to the transposition assembly, the coarse grinding wheel is connected to the left end of the driving rod, the limiting assembly is connected to the driving rod, the fine grinding sheet is connected to the limiting assembly, the hydraulic cylinder is connected to the inner cavity of the rotating table, the driving motor is connected to the hydraulic cylinder, and the driving rod is connected to the power output end of the driving motor, the hydraulic cylinder drives the driving rod to move through the driving motor, and the movement of the driving rod drives the transposition assembly to push the limiting assembly, the fine grinding sheet covers the annular surface of the coarse grinding wheel under the action of the limiting assembly, and the limiting member contacts the surface to be polished of the casting under the action of the transposition assembly.
[0008] Through the above scheme, the coarseness of the grinding wheel can be replaced in the cavity of the valve casting, thereby greatly reducing the time for replacing the grinding wheel and improving work efficiency. By moving the position of the motor in the vertical space, the fine grinding wheel is given the space required to cover the coarse grinding wheel, so that the fine grinding wheel can directly return to the original path, thereby reducing the activity trajectory of the fine grinding wheel and improving work efficiency.
[0009] Furthermore, a limiting groove is provided on the left side of the fixing frame, and a notch is provided on the left side of the rotating platform, and the limiting groove and the notch are rectangles of the same size.
[0010] Through the above scheme, space can be given to the transmission rod and the transposition assembly to move, thereby facilitating the adjustment of the position of the transmission rod, thereby achieving the purpose of adjusting the position of the transposition assembly on the surface of the transmission rod. The setting of the limit groove can ensure the stable sliding of the transposition assembly, and the setting of a larger groove can reduce the friction on the transmission rod.
[0011] Preferably, the shifting assembly includes an outer rod, a connecting rod, a connecting ring and a push rod, the outer rod is slidably connected to the limit groove, and the outer rod is sleeved on the outer surface of the transmission rod, one end of the connecting rod is connected to the left side of the upper end of the outer rod, and the other end of the connecting rod is connected to the left side of the fixed frame, the connecting rod is inclined, the length of the connecting rod is smaller than the length of the outer rod, the connecting ring is connected to the left end of the outer rod, the push rod is arranged in a ring array along the axis of the transmission rod at the left end of the connecting ring, the outer rod is rectangular, and the outer rod is adapted to be snap-fitted into the limit groove.
[0012] Through the above scheme, the cooperation between the limit groove and the outer rod can, on the one hand, drive the transmission rod to move up and down stably through the outer rod, thereby reducing shaking; on the other hand, the outer rod can move left and right along the surface of the transmission rod, thereby adjusting the position of the connecting ring, thereby achieving the purpose of pushing the position of the limit assembly.
[0013] Preferably, the limiting member includes an elastic section, a rigid section and a rubber pad, the elastic section is connected to the left side of the fixing frame, the rigid section is connected to the left end of the elastic section, the elastic modulus of the elastic section gradually increases from right to left, the rubber pad is connected to the rigid section, the upper end of the rigid section is inclined, the lower end of the rigid section is arc-shaped, and the connecting ring is truncated.
[0014] Through the above scheme, the rigid section can be squeezed during the movement of the connecting ring, thereby causing the elastic section to deform and bend downward, thereby achieving the purpose of adjusting the position of the rubber pad. At the same time, the elastic section squeezes the connecting ring upward through the rigid section, and pressure is applied to the connecting ring, thereby increasing the contact density between the connecting ring and the outer sleeve rod and improving stability.
[0015] Furthermore, the rubber pad is in a right-angled trapezoid, the right-angled side of the rubber pad is located on the right side, and the rubber pad is made of bubble-shaped rubber.
[0016] Through the above scheme, when the rubber pad contacts the curved surface of the valve casting, on the one hand, wrinkles can be formed at both ends of the rubber pad. The formation of wrinkles will increase the friction between the rubber pad and the product surface, improve the effect of removing powder chips, and at the same time, the wrinkles are convenient for collecting powder chips. On the other hand, the pressure of both sides of the rubber pad on the surface of the valve casting is increased, thereby further improving the effect of removing powder chips.
[0017] Preferably, the limit assembly includes a limit frame, a slide groove and a support arm, the limit frame array is connected to the outer surface of the transmission rod, the number of the limit frames corresponds to the number of the push rods, the limit frame is a right triangle, the slide groove is inclined and arranged on the inclined surface of the limit frame, the support arm is connected to the slide groove, and the support arm is connected to the push rod.
[0018] Through the above scheme, the triangular shape of the limit frame can fix the two sides to the coarse grinding wheel and the transmission rod respectively, thereby improving the stability of the rotation of the coarse grinding wheel. The inclined setting of the slide groove makes the support arm move obliquely, thereby driving the fine grinding plate to unfold obliquely, which is convenient for adjusting the diameter value of the fine grinding plate during rotation, so as to achieve the purpose of covering the coarse grinding wheel.
[0019] Furthermore, the fine grinding plate is connected to the support arm, the fine grinding plate is arc-shaped, the curvature of the fine grinding plate is equal to the curvature of the coarse grinding wheel, the number of the fine grinding plates is three, and the three fine grinding plates can form an arc triangle.
[0020] Through the above scheme, the three fine grinding plates can contact each other after the fine grinding plates are retracted, thereby reducing the resistance during rotation and avoiding the shaking of the connection points between the fine grinding plates and the support arms caused by the resistance, thereby achieving the purpose of increasing the service life of the fine grinding plates.
[0021] Furthermore, point a and point b are provided on the surface of the slide groove, point a is located at the left end of the slide groove, point b is located on the surface of the slide groove, the distance value from point b to the coarse grinding wheel is greater than the distance value from the left side of the fine grinding plate to the left side of the support arm, and the height value of the support arm is greater than the distance value projected upward from point b to the surface of the coarse grinding wheel. Therefore, when the support arm reaches point b, the fine grinding plate can be higher than the coarse grinding wheel, avoiding contact between the two sides during the movement. At the same time, since point b is lower than point a, the support arm can avoid contact between the fine grinding plate and the coarse grinding wheel when reaching point a, effectively avoiding the problem of powder chips on the surface of the coarse grinding wheel affecting the coordination of the fine grinding plate.
[0022] Furthermore, a clamping block is connected to the left end of the support arm, and a clamping slot is provided at an equal angle on the right end of the rough grinding wheel. The distance from the side of the clamping slot close to the transmission rod to the transmission rod is smaller than the distance from point a to the transmission rod, and the clamping block is key-connected to the clamping slot.
[0023] Therefore, the movement of the support arm can connect the card block with the card slot, and then the card block is subjected to force during the rotation process, which effectively reduces the stress intensity of the connection point between the support arm and the push rod and improves the service life. At the same time, the key connection is convenient for unpacking and installation, so as to achieve the effect of quickly changing between coarse grinding and fine grinding.
[0024] Furthermore, the length of the push rod is greater than the length of the hypotenuse of the limiting frame, and the distance from the left side of the fine grinding plate to the left side of the support arm is greater than the distance between the left and right ends of the coarse grinding wheel.
[0025] Through the above scheme, it is ensured that the push rod can make the support arm fit with the coarse grinding wheel, so as to achieve the purpose of engaging the clamping block with the clamping slot. At the same time, the rotation trajectory of the fine grinding sheet can completely cover the rotation trajectory of the coarse grinding wheel, thereby effectively improving the grinding effect.
[0026] Compared with the prior art, the present invention has the following beneficial effects:
[0027] 1. The present invention solves the problem of low grinding efficiency caused by difficulty in replacing the grinding head. Specifically, a coarse grinding wheel and a fine grinding sheet are provided, and the valve is roughly ground by the coarse grinding wheel. After the coarse grinding wheel is ground, the position of the push rod is adjusted by the position change component, thereby driving the fine grinding sheet to move so that the fine grinding sheet covers the coarse grinding wheel, thereby achieving the purpose of rapid replacement, thereby improving the efficiency of replacing the grinding head and achieving the purpose of improving work efficiency.
[0028] 2. By setting up a shifting component, the shifting component drives the limit component to move during the movement, thereby driving the fine grinding sheet to move in an inclined state, thereby covering the outer surface of the coarse grinding wheel. At the same time, the movement of the shifting component will squeeze the limit piece, thereby causing the limit piece to bend. Through the bending of the limit piece, one end of the limit piece is attached to the surface of the valve casting, thereby removing powder chips before fine grinding, thereby achieving the purpose of improving the fine grinding efficiency.
[0029] 3. By setting the limit assembly, the fine grinding plate can be moved in an inclined state, thereby reducing the activity space of the fine grinding plate, making it easy to switch between coarse and fine grinding effects in a small space, and the grinding head can be quickly replaced. At the same time, the setting of the slot and the block can effectively improve the stability of the fine grinding plate during rotation, and then the feed speed can be increased during the grinding process, thereby achieving the purpose of improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a structural schematic diagram of the appearance of the present invention;
[0031] Figure 2 It is a schematic diagram of the overall structure of the present invention;
[0032] Figure 3 It is a structural schematic diagram of the transposition component part of the present invention;
[0033] Figure 4 It is a structural schematic diagram of the position-limiting member of the present invention;
[0034] Figure 5 It is a structural schematic diagram of the limiting component part of the present invention;
[0035] Figure 6 It is a structural schematic diagram of the chute part of the present invention;
[0036] Figure 7 It is a schematic diagram of the process of fine grinding work of the present invention;
[0037] Figure 8 It is a structural schematic diagram of the flip grinding position of the present invention.
[0038] In the figure: 1. mounting table; 2. clamping frame; 3. power frame; 4. rotating table; 401. notch; 5. fixing frame; 501. limiting groove; 6. limiting member; 601. elastic section; 602. rigid section; 603. rubber pad; 7. transposition assembly; 701. outer sleeve rod; 702. connecting rod; 703. connecting ring; 704. pushing rod; 8. transmission rod; 9. coarse grinding wheel; 901. slot; 10. limiting assembly; 1001. limiting frame; 1002. slide; 1003. support arm; 10031. block; 11. fine grinding disc; 12. hydraulic cylinder; 13. transmission motor. DETAILED DESCRIPTION
[0039] The following is a clear and complete description of the technical solution of the embodiment of the present invention in conjunction with the drawings of the embodiment of the present invention, so that its working state and structural features are more detailed. Obviously, the described embodiment is only a partial embodiment of the present invention, not a complete embodiment. Based on the embodiment of the present invention, other embodiments obtained by ordinary technicians in this field without making any creativity belong to the protection scope of the present invention.
[0040] See also Figures 1 to 8 The present invention provides a device for grinding the excess material of the parting surface of an air compressor valve casting, and the technical scheme is as follows:
[0041] For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 , an air compressor valve casting parting surface excess material grinding equipment, including a mounting platform 1, a clamping frame 2, a power frame 3 and a rotating table 4, the clamping frame 2 is connected to the left side of the upper end of the mounting platform 1, the power frame 3 is connected to the right side of the upper end of the mounting platform 1, the power frame 3 can move left and right on the surface of the mounting platform 1, the rotating table 4 is connected to the left side of the power frame 3, and the rotating table 4 can be driven to rotate by the power frame 3, the valve casting to be polished is placed on the right side of the clamping frame 2, the valve casting is placed in a vertical shape, the rotating table 4 is rotated 180° by the rotating table 4, and the rotating table 4 is pushed up by the power frame 3, so as to grind the parting surfaces on the upper and lower sides of the inner cavity of the valve casting, and also includes a fixed frame 5, a limiter 6, a transposition assembly 7, a transmission rod 8, a coarse grinding wheel 9, a limiter assembly 10, a fine grinding sheet 11, a hydraulic cylinder 12 and a transmission motor 13, the fixed frame 5 is connected to the left end of the rotating table 4, the fixed frame 5 can be In order to rotate synchronously with the rotating table 4, a limiting groove 501 is provided on the left side of the fixed frame 5, the limiting member 6 is connected to the left side of the fixed frame 5, the transposition assembly 7 is connected to the fixed frame 5, and compared with the transposition assembly 7, the limiting member 6 is farther from the central axis of the rotating table 4, the transmission rod 8 is connected to the transposition assembly 7, the coarse grinding wheel 9 is connected to the left end of the transmission rod 8, the limiting assembly 10 is connected to the transmission rod 8, the fine grinding sheet 11 is connected to the limiting assembly 10, the hydraulic cylinder 12 is connected to the inner cavity of the rotating table 4, the transmission motor 13 is connected to the hydraulic cylinder 12, and the inner cavity of the rotating table 4 has sufficient space for the motor to dissipate heat. A notch 401 is provided on the left side of the rotating table 4, so that the hydraulic cylinder 12 can drive the transmission motor 13 to move upward, and the upward movement of the transmission motor 13 drives the transmission rod 8 to move upward, and the transmission rod 8 moves upward through the notch 401, and the power output end of the transmission motor 13 is connected to the transmission rod 8.
[0042] By setting the coarse grinding wheel 9 and the fine grinding sheet 11, the inner cavity of the valve casting can be quickly replaced. The overall setting of the coarse grinding wheel 9 has high strength and can effectively cope with larger protrusions. The small setting of the fine grinding sheet 11 can be effectively changed, which is convenient for covering the rotating surface of the coarse grinding wheel 9 and then performing fine grinding.
[0043] As an embodiment of the present invention, refer to Figure 3 , Figure 4 , Figure 7 and Figure 8, the shifting assembly 7 includes an outer sleeve rod 701, a connecting rod 702, a connecting ring 703 and a pushing rod 704. The outer sleeve rod 701 is slidably connected to the fixing frame 5 through the sliding limit groove 501. The limit groove 501 and the notch 401 are both rectangular and of the same size. A transmission rod 8 is sleeved inside the outer sleeve rod 701, thereby avoiding the contact between the transmission rod 8 and the notch 401 and reducing the wear of the transmission rod 8. One end of the connecting rod 702 is connected to the left side of the upper end of the outer sleeve rod 701, and the other end of the connecting rod 702 is connected to the left side of the fixing frame 5, and the other end of the connecting rod 702 is located at the upper end of the limit groove 501. Both ends of the connecting rod 702 are rotatably connected, and the connecting rod 702 is inclined. The inclination angle of the connecting rod 702 is controlled according to the length of the connecting rod 702 The outer sleeve 701 is a substantially rectangular shape, and the outer sleeve 701 is adapted to be engaged with the limiting groove 501. When the transmission motor 13 drives the transmission rod 8 to rotate, the rectangle of the outer sleeve 701 is subject to greater resistance from the limiting groove 501 and will not rotate with it. The limiting member 6 includes an elastic section 601, a rigid section 602 and a rubber pad 603. The elastic section 601 is a substantially rectangular shape, and the outer sleeve 701 is adapted to be engaged with the limiting groove 501. When the transmission motor 13 drives the transmission rod 8 to rotate, the rectangle of the outer sleeve 701 is subject to greater resistance from the limiting groove 501 and will not rotate with it. The limiting member 6 includes an elastic section 601, a rigid section 602 and a rubber pad 603. The elastic section 601 The elastic section 601 is connected to the left side of the fixing frame 5, and the elastic section 601 is fixedly connected to the fixing frame 5. The rigid section 602 is connected to the left end of the elastic section 601. The elastic modulus of the elastic section 601 gradually increases from right to left, so that the deformation position of the elastic section 601 is mainly located on the left side of the elastic section 601. The change of the elastic modulus of the elastic section 601 can reduce the stress concentration of the single point change. At the same time, the main bending point of the elastic section 601 is located on the right side, thereby reducing the distance from the bending point to the connecting ring 703, and improving the force applied by the elastic section 601 to the elastic section 601 through the rigid section 602. The upper surface of the rigid section 602 is coated with a wear-resistant coating, and the rubber pad 603 is connected to the left end of the lower side of the rigid section 602. The upper end of the rigid section 602 is inclined. 2 has an arc-shaped lower end, which increases the contact area between the rigid section 602 and the rubber pad 603, thereby improving the stability of the connection between the rigid section 602 and the rubber pad 603. The connecting ring 703 is in a truncated cone shape, and the connecting ring 703 contacts the rigid section 602. The rubber pad 603 is in a right-angled trapezoid, and the right-angled side of the rubber pad 603 is located on the right side. The rubber pad 603 is made of bubble-shaped rubber. When the rubber pad 603 contacts the arc-shaped surface of the valve casting, the right-angled trapezoid shape of the rubber pad 603 forms a gap on the right side of the rubber pad 603, thereby collecting the powder chips disconnected from the valve casting (part of the powder chips generated by the coarse grinding wheel 9 during the grinding process will be completely disconnected from the valve casting, and the other part will be affected by some factors and adsorbed on the surface of the valve casting).The lower side of the rubber pad 603 with a straight bottom contacts the curved arc surface of the inner cavity of the valve casting, which will form wrinkles at both ends of the rubber pad 603. The wrinkles will increase the friction between the rubber pad 603 and the product surface, improve the effect of removing powder chips, and thus remove the powder chips adsorbed on the surface of the valve casting. At the same time, the wrinkles are convenient for collecting the powder chips. At the same time, the redundant rubber pad 603 on both sides will increase the pressure on the surface of the valve casting, thereby further improving the effect of removing powder chips.
[0044] By setting the transposition component 7, the outer sleeve 701 can be moved left and right through the limit of the connecting rod 702 during the process of the outer sleeve rod 701 moving up and down, thereby achieving the purpose of adjusting the position of the outer sleeve rod 701. By adjusting the position of the outer sleeve rod 701, the push rod 704 can squeeze the limit component 10, so that the limit component 10 is deformed, thereby achieving the purpose of adjusting the position of the fine grinding plate 11. At the same time, the movement of the outer sleeve rod 701 will drive the connecting ring 703 to move on the surface of the rigid section 602, thereby causing the elastic section 601 to bend. When the elastic section 601 bends, on the one hand, the rubber pad 603 will move downward and fit the surface of the valve casting. On the other hand, the upward elastic force of the elastic section 601 will squeeze the connecting ring 703 upward, thereby reducing the problem of small contact area caused by the connection ring 703 due to the influence of gravity, so that the pressure point is mainly located at the upper end of the connection surface between the connecting ring 703 and the outer sleeve rod 701, thereby improving stability.
[0045] As an embodiment of the present invention, refer to Figure 5 , Figure 6 , Figure 7 and Figure 8The limiting assembly 10 includes a limiting frame 1001, a slide groove 1002 and a support arm 1003. The limiting frame 1001 is connected to the outer surface of the transmission rod 8 in an array. The number of the limiting frames 1001 corresponds to the number of the push rods 704. The limiting frame 1001 is a right triangle. One side of the limiting frame 1001 is connected to the transmission rod 8, and the other side of the limiting frame 1001 is connected to the rough grinding wheel 9, thereby effectively improving the stability of the connection of the rough grinding wheel 9. The slide groove 1002 is inclined and arranged on the inclined surface of the limiting frame 1001. The depth of the slide groove 1002 is consistent on the inclined surface of the limiting frame 1001. The support arm 1003 is slidably connected to the slide groove 100 2, the support arm 1003 is connected to the push rod 704, the connection point between the support arm 1003 and the push rod 704 can rotate, the fine grinding sheet 11 is fixedly connected to the support arm 1003, the fine grinding sheet 11 is arc-shaped, when the fine grinding sheet 11 covers the coarse grinding wheel 9, the extended surface of the side of the fine grinding sheet 11 is connected to form a complete ring, the fine grinding sheet 11 can then take the axis of the coarse grinding wheel 9 as the axis, and the rotation trajectory forms a complete circle, the number of fine grinding sheets 11 is three, the three fine grinding sheets 11 can form an arc triangle, the three fine grinding sheets 11 are synchronously moved by the support arm 1003, and then a circular activity trajectory can be formed in the process of rotation, and no convex The surface of the slide 1002 is provided with point a and point b, point a is located at the left end of the slide 1002, point a is located at the position of the slide 1002 farthest from the transmission rod 8, point b is located on the surface of the slide 1002, the distance value from point b to the coarse grinding wheel 9 is greater than the distance value from the left side of the fine grinding plate 11 to the left side of the support arm 1003, the height value of the support arm 1003 is greater than the distance value projected upward from point b to the surface of the coarse grinding wheel 9, when the support arm 1003 drives the fine grinding plate 11 to move to the left, when it reaches point b, there is a gap between the fine grinding plate 11 and the coarse grinding wheel 9, and the diameter of the rotation track of the fine grinding plate 11 is greater than the diameter of the coarse grinding wheel 9, thereby avoiding The fine grinding disc 11 contacts the coarse grinding wheel 9 during movement, a block 10031 is connected to the left end of the support arm 1003, and a slot 901 is provided at an equal angle to the right end of the coarse grinding wheel 9. The distance from the side of the slot 901 close to the transmission rod 8 to the transmission rod 8 is smaller than the distance from point a to the transmission rod 8, thereby preventing the block 10031 from being blocked by the slot 901 during movement. The block 10031 is key-connected to the slot 901, thereby facilitating disassembly and splicing. The length of the push rod 704 is greater than the length of the hypotenuse of the limit frame 1001, and the distance from the left side of the fine grinding disc 11 to the left side of the support arm 1003 is greater than the distance between the left and right ends of the coarse grinding wheel 9.
[0046] By setting the limit assembly 10, the movement of the fine grinding plate 11 can be guided so that it can replace the grinding surface of the coarse grinding wheel 9 with an inclined moving trajectory. During the movement of the fine grinding plate 11, the slot 901 and the block 10031 will be engaged with each other, thereby ensuring the stability of the fine grinding plate 11 during the rotation process, while reducing the impact of the grinding process on the connection point of the support arm 1003 and the push rod 704.
[0047] The surface of the valve casting to be polished faces the left side, and the power frame 3 drives the rough grinding wheel 9 to move to the left. During the movement to the left, the rough grinding wheel 9 contacts the valve casting for rough grinding. After the rough grinding is completed, the hydraulic cylinder 12 drives the transmission rod 8 to move through the transmission motor 13. The transmission rod 8 moves to drive the transposition component 7 to push the limit component 10. The limit component 10 pushes the fine grinding plate 11 to cover the annular surface of the rough grinding wheel 9. The transmission motor 13 drives the fine grinding plate 11 to rotate. At this time, the power frame 3 moves to the right to drive the fine grinding plate 11 to contact the valve casting. During fine grinding, the limit member 6 first rubs the surface of the valve casting to be polished under the action of the transposition component 7, and the fine grinding plate 11 finely grinds the valve casting. When the power frame 3 is reset, the rotating table 4 rotates 180° to polish the upper end of the valve casting.
[0048] Specifically, the valve casting is fixed by the clamping frame 2 so that its surface to be polished faces the power frame 3, and the transmission motor 13 outputs power, thereby driving the transmission rod 8 to rotate, and the rotation of the transmission rod 8 drives the coarse grinding wheel 9 to rotate. When the coarse grinding wheel 9 rotates, part of the power is transmitted to the surface of the outer rod 701 through friction. Since the outer rod 701 is rectangular, and the outer rod 701 is slidably engaged with the limiting groove 501, the outer rod 701 cannot rotate. When the transmission rod 8 rotates, it will drive the limiting frame 1001 to rotate, and the rotation of the limiting frame 1001 will drive the support arm 1003 to rotate. The rotation of the support arm 1003 will drive the fine grinding disc 11 to rotate. The three fine grinding discs 11 are in contact with each other at this time, and the rotation trajectory formed is small, so they will not contact the valve casting. The power frame 3 moves toward the direction of the valve casting, thereby driving the coarse grinding wheel 9 to polish the surface of the valve casting;
[0049] After the rough grinding is completed, the power output of the motor is stopped, and the hydraulic cylinder 12 is started. The hydraulic cylinder 12 drives the transmission motor 13 to move, and the movement of the transmission motor 13 drives the transmission rod 8 to move, and the movement of the transmission rod 8 drives the outer sleeve rod 701 to move. Since one end of the connecting rod 702 is connected to the fixed frame 5, when the outer sleeve rod 701 moves, the angle between the connecting rod 702 and the outer sleeve rod 701 becomes smaller. At the same time, since the length of the connecting rod 702 remains unchanged, the connecting rod 702 will push the outer sleeve rod 701 to move in the direction of the valve casting. When the outer sleeve rod 701 moves in the direction of the valve casting, it will drive the connecting ring 703 to move, and the movement of the connecting ring 703 drives the push rod 704 to move.
[0050] When the push rod 704 moves, it drives the support arm 1003 to move, and the movement of the support arm 1003 drives the fine grinding sheet 11 to move. Since the support arm 1003 moves in the slide groove 1002, and the support arm 1003 moves in an inclined state, when the support arm 1003 moves in an inclined state, the angle of the push rod 704 will rotate. When the support arm 1003 moves to point b, there is a gap between the left side of the fine grinding sheet 11 and the coarse grinding wheel 9. The distance value from the side of the inner surface of the fine grinding sheet 11 close to the transmission rod 8 to the transmission rod 8 is greater than the distance value from the surface of the coarse grinding wheel 9 to the transmission rod 8, thereby avoiding the contact between the fine grinding sheet 11 and the coarse grinding wheel 9 during the movement of the fine grinding sheet 11. The push rod 704 continues to drive the support arm 1003 to move until the support arm 1003 moves to point a. When the support arm 1003 moves to point a, the card block 10031 will be carded into the card slot 901.
[0051] When the connecting ring 703 pushes the pushing rod 704 to move, the connecting ring 703 will contact the top of the rigid section 602. Since the top of the rigid section 602 is inclined, and the connecting ring 703 moves in a straight shape, the rigid section 602 will be gradually squeezed during the movement of the connecting ring 703. The pressure on the rigid section 602 is transmitted to the elastic section 601, forcing the elastic section 601 to bend. Since the elastic modulus of the elastic section 601 gradually increases from right to left, the deformation position of the elastic section 601 is mainly located on the left side of the elastic section 601. By making the deformation point of the elastic section 601 on the left side, the position of the deformation point to the rigid section 602 is reduced, thereby improving the elastic section 601 through the rigid section 602 to the rigid section 602. The pressure applied by the connecting ring 703 and the overall deformation of the elastic section 601 will reduce the stress concentration of single-point deformation; the movement of the rigid section 602 will make the rubber pad 603 contact with the valve casting. When the rubber pad 603 contacts the arc surface of the valve casting, the right-angled trapezoid shape of the rubber pad 603 will form a gap on the right side of the rubber pad 603, thereby collecting the powder chips disconnected from the valve casting. The lower side of the rubber pad 603 with a straight bottom contacts the curved arc surface of the inner cavity of the valve casting, which will form wrinkles at both ends of the rubber pad 603. The generation of wrinkles will increase the friction between the rubber pad 603 and the product surface, improve the effect of removing powder chips, and then remove the powder chips adsorbed on the surface of the valve casting. At the same time, the wrinkles collect the powder chips.
[0052] When fine grinding begins, the transmission motor 13 drives the transmission rod 8 to rotate, the rotation of the transmission rod 8 drives the limit frame 1001 to rotate, the rotation of the limit frame 1001 drives the support arm 1003 to rotate, the rotation of the support arm 1003 drives the fine grinding plate 11 to rotate, and at this time, the power frame 3 drives the fine grinding plate 11 to move to the side away from the valve casting, and the fine grinding plate 11 contacts the valve casting to grind the valve casting;
[0053] After the grinding on one side is completed, the rotating table 4 is rotated 180 degrees, and then the rotating table 4 is pushed upward by the power frame 3 to grind the parting surface on the other side of the inner cavity of the valve casting. When the grinding on both sides is completed, the power frame 3 is reset and the valve casting is replaced.
[0054] Although the embodiments of the present invention have been described, it will be apparent to those skilled in the art that changes and modifications may be made to the embodiments to obtain other effects with an understanding of the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An equipment for grinding the parting surface of a valve casting of an air compressor, comprising a mounting table (1), a clamping frame (2), a power frame (3) and a rotating table (4), characterized in that: The invention also comprises a fixed frame (5), a stopper (6), a shifting assembly (7), a transmission rod (8), a coarse grinding wheel (9), a stopper assembly (10), a fine grinding sheet (11), a hydraulic cylinder (12) and a transmission motor (13), wherein the fixed frame (5) is connected to the left end of the rotating table (4), the stopper (6) is connected to the left side of the fixed frame (5), the shifting assembly (7) is connected to the fixed frame (5), the transmission rod (8) is connected to the shifting assembly (7), the coarse grinding wheel (9) is connected to the left end of the transmission rod (8), the stopper assembly (10) is connected to the transmission rod (8), and the fine grinding sheet (11) is connected to the left end of the transmission rod (8). The hydraulic cylinder (12) is connected to the inner cavity of the rotating table (4), the transmission motor (13) is connected to the hydraulic cylinder (12), and the transmission rod (8) is connected to the power output end of the transmission motor (13). The hydraulic cylinder (12) drives the transmission rod (8) to move through the transmission motor (13). The movement of the transmission rod (8) drives the transposition component (7) to push the limiting component (10). The fine grinding sheet (11) covers the annular surface of the coarse grinding wheel (9) under the action of the limiting component (10). The limiting member (6) contacts the surface to be ground of the casting under the action of the transposition component (7); A limiting groove (501) is provided on the left side of the fixing frame (5), and a notch (401) is provided on the left side of the rotating platform (4), wherein the limiting groove (501) and the notch (401) are rectangular shapes of the same size; The shifting assembly (7) comprises an outer sleeve rod (701), a connecting rod (702), a connecting ring (703) and a pushing rod (704); the outer sleeve rod (701) is connected to the limiting groove (501), and the outer sleeve rod (701) is sleeved on the outer surface of the transmission rod (8); one end of the connecting rod (702) is connected to the left side of the upper end of the outer sleeve rod (701), and the other end of the connecting rod (702) is connected to the left side of the fixing frame (5); the connecting rod (702) is inclined; the length of the connecting rod (702) is smaller than the length of the outer sleeve rod (701); the connecting ring (703) is connected to the left end of the outer sleeve rod (701); the pushing rod (704) is arranged in a circular array along the axis of the transmission rod (8) at the left end of the connecting ring (703); the outer sleeve rod (701) is rectangular, and the outer sleeve rod (701) is adapted to be snap-fitted to the limiting groove (501); The limit assembly (10) comprises a limit frame (1001), a slide groove (1002) and a support arm (1003); the limit frames (1001) are connected in array to the outer surface of the transmission rod (8); the number of the limit frames (1001) corresponds to the number of the push rods (704); the limit frame (1001) is in the form of a right triangle; the slide groove (1002) is arranged in an inclined shape on the inclined surface of the limit frame (1001); the support arm (1003) is connected to the slide groove (1002); and the support arm (1003) is connected to the push rod (704).
2. The equipment for polishing the parting surface of air compressor valve casting according to claim 1 is characterized in that: The limiting member (6) comprises an elastic section (601), a rigid section (602) and a rubber pad (603); the elastic section (601) is connected to the left side of the fixing frame (5); the rigid section (602) is connected to the left end of the elastic section (601); the elastic modulus of the elastic section (601) gradually increases from right to left; the rubber pad (603) is connected to the rigid section (602); the upper end of the rigid section (602) is inclined; the lower end of the rigid section (602) is arc-shaped; and the connecting ring (703) is truncated.
3. The equipment for polishing the parting surface of air compressor valve casting according to claim 2 is characterized in that: The rubber pad (603) is in the shape of a right-angled trapezoid, the right-angled side of the rubber pad (603) is located on the right side, and the rubber pad (603) is made of bubble-shaped rubber.
4. The equipment for polishing the parting surface of air compressor valve casting according to claim 2 is characterized in that: The fine grinding plates (11) are connected to the support arm (1003); the fine grinding plates (11) are arc-shaped; and the number of the fine grinding plates (11) is three.
5. The equipment for polishing the parting surface of air compressor valve casting according to claim 4 is characterized in that: The surface of the slide groove (1002) is provided with a point a and a point b, the point a is located at the left end of the slide groove (1002), the point b is located on the surface of the slide groove (1002), the distance value from the point b to the coarse grinding wheel (9) is greater than the distance value from the left side of the fine grinding plate (11) to the left side of the support arm (1003), and the height value of the support arm (1003) is greater than the distance value of the upward projection of the point b onto the surface of the coarse grinding wheel (9).
6. The equipment for polishing the parting surface of air compressor valve casting according to claim 5, characterized in that: The left end of the support arm (1003) is connected to a clamping block (10031), and the right end of the coarse grinding wheel (9) is provided with a clamping slot (901) at an equal angle, the distance between the side of the clamping slot (901) close to the transmission rod (8) and the transmission rod (8) is smaller than the distance between point a and the transmission rod (8), and the clamping block (10031) is key-connected to the clamping slot (901).
7. The equipment for polishing the parting surface of air compressor valve casting according to claim 2, characterized in that: The length of the push rod (704) is greater than the length of the hypotenuse of the limit frame (1001), and the distance from the left side of the fine grinding sheet (11) to the left side of the support arm (1003) is greater than the distance between the left and right ends of the coarse grinding wheel (9).