A reciprocating vacuum pump parts grinding machine

Abstract

The present invention relates to the field of parts grinding, and in particular to a reciprocating vacuum pump parts grinding machine. The technical problem is that the grinding of the end face of the vacuum pump cover is not uniform and comprehensive enough, and it is inconvenient to correct the vacuum pump cover, and the contact between the grinding wheel and the end face of the vacuum pump cover is not comprehensive enough. A reciprocating vacuum pump parts grinding machine includes a base, a shell, a placement cylinder and a pump cover, etc.; the base is equipped with a shell, and the base is slidably provided with a placement cylinder, and the pump cover to be processed is placed on the placement cylinder. The telescopic rods of the two electric push rods are contracted to drive the mounting ring, the round cover, the hollow rotating shaft, the cross frame, the double-axis motor, the grinding wheel, the planetary gear reduction assembly, the column gear and the inner gear ring to move downward. After the grinding wheel contacts the end face of the pump cover, the grinding wheel rotates while revolving along the circumference of the pump cover. The grinding wheel grinds the end face of the pump cover more comprehensively and evenly, thereby improving the accuracy of the pump cover after grinding.

Description

Technical Field

[0001] The invention relates to the field of parts grinding, in particular to a reciprocating vacuum pump parts grinding machine tool. Background Art

[0002] When the vacuum pump cover is produced, it is usually cast by pouring. The end face of the vacuum pump cover is first rough ground and then ground (grinding is fine grinding). Because the vacuum pump needs to have good sealing when in use, the grinding accuracy needs to be ensured when grinding the vacuum pump cover.

[0003] At present, when grinding the end face of the vacuum pump cover, there is a problem that the grinding wheel does not contact the end face of the vacuum pump cover completely, resulting in the end face of the vacuum pump cover not being ground evenly and completely. In addition, the vacuum pump cover may not be placed flat enough, which makes it inconvenient to correct the vacuum pump cover, and also causes the end face of the vacuum pump cover to be ground unevenly, thereby reducing the accuracy of the end face of the vacuum pump cover after grinding. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a reciprocating vacuum pump parts grinding machine, which can make the grinding wheel contact with the end face of the vacuum pump cover more comprehensively, so as to grind the vacuum pump cover more evenly and comprehensively, and also facilitate the correction and fixation of the vacuum pump cover, so that the vacuum pump cover can be placed more flat, thereby improving the accuracy of the vacuum pump cover after grinding.

[0005] The technical solution of the present invention is: a reciprocating vacuum pump parts grinding machine, including a base, a shell, a placement cylinder, a pump cover, an electric push rod, a mounting ring, a round cover, a fastening mechanism, a grinding mechanism and a driving mechanism. The base is installed with a shell, the base is slidably provided with a placement cylinder, the pump cover to be processed is placed on the placement cylinder, two electric push rods are installed on the base, the two electric push rods are symmetrically arranged, a mounting ring is installed between the top ends of the telescopic rods of the two electric push rods, a round cover is installed on the mounting ring, a fastening mechanism is provided on the placement cylinder, the fastening mechanism is used to fasten the pump cover, a grinding mechanism is provided in the round cover, the grinding mechanism is used to grind the end face of the pump cover, and a driving mechanism is provided on the round cover and the grinding mechanism, and the driving mechanism is used to drive the grinding mechanism to move.

[0006] Furthermore, the fastening mechanism includes an arc-shaped clamping plate and a threaded knob. Two arc-shaped clamping plates are slidingly provided on the placing tube, and the two arc-shaped clamping plates are symmetrically arranged. Two threaded knobs are threadedly connected to the placing tube, and the two threaded knobs are symmetrically arranged. The ends of the two threaded knobs close to each other are rotatably connected to the two arc-shaped clamping plates respectively.

[0007] Furthermore, the sides of the two arc-shaped clamping plates close to each other are provided with a rough surface.

[0008] Furthermore, the grinding mechanism includes a hollow rotating shaft, a cross frame, a dual-axis motor and a grinding wheel. The hollow rotating shaft is rotatably installed at the center position of the round cover, and a cross frame is installed on the hollow rotating shaft. The cross frame is located inside the round cover, and a dual-axis motor is installed on one side of the cross frame. A grinding wheel is installed on one of the output shafts of the dual-axis motor.

[0009] Furthermore, the driving mechanism includes a planetary gear reduction assembly, a column gear and an inner ring gear. The planetary gear reduction assembly is installed on the side of the cross frame close to the dual-axis motor. The input end of the planetary gear reduction assembly is connected to the other output shaft of the dual-axis motor. The output end of the planetary gear reduction assembly is installed with a column gear. The inner ring gear is installed in the round cover, and the column gear is meshed with the inner ring gear.

[0010] Furthermore, it also includes a pressing mechanism, which is arranged on the shell and the hollow rotating shaft, and is used to press the pump cover. The pressing mechanism includes a pressing piston rod, a ball, a rotating joint, a cylinder body, a pressing piston rod, a hard tube and a hose. A pressing piston rod is slidably provided in the hollow rotating shaft, and the rod portion of the pressing piston rod passes through the lower part of the hollow rotating shaft, and a ball is provided at the end of the rod portion of the pressing piston rod. A rotating joint is rotatably installed on the upper part of the hollow rotating shaft, and the rotating joint is connected to the hollow rotating shaft. A hard tube is rotatably installed on the other end of the rotating joint, and the rotating joint is connected to the hard tube. A cylinder body is installed on the inner side surface of the shell, and a pressing piston rod is slidably provided in the cylinder body, and the rod portion of the pressing piston rod passes through the upper part of the cylinder body, and the rod portion of the pressing piston rod is connected to the mounting ring. A hose is connected between the cylinder body and the other end of the hard tube, and the hose is connected to the cylinder body, and the hose is connected to the hard tube.

[0011] Furthermore, it also includes a cleaning mechanism, which is arranged on the round cover and the cross frame. The cleaning mechanism is used to clean the debris ground off the pump cover. The cleaning mechanism includes a sliding plate and a brush plate. A driving groove is opened at the top of the round cover, and a sliding plate is slidably installed on the other side of the cross frame. The top of the sliding plate is located in the driving groove, and a brush plate is installed at the bottom of the sliding plate.

[0012] Furthermore, it also includes a moving mechanism, which is arranged on the placement cylinder, the mounting ring and the hollow rotating shaft. The moving mechanism is used to drive the pump cover to move. The moving mechanism includes a corrugated groove disk, a sliding frame, a roller and a guide frame. The hollow rotating shaft is installed with a corrugated groove disk, and a corrugated groove is opened in the circumference of the corrugated groove disk. The corrugated groove disk is located on the outer upper part of the round cover. A sliding frame is slidably provided on the mounting ring, and a roller is rotatably installed on one side of the sliding frame. The roller is located in the corrugated groove of the corrugated groove disk. A guide frame is installed on one side of the placement cylinder, and the other side of the sliding frame is slidably connected to the guide frame.

[0013] The present invention has the following advantages: 1. The telescopic rods of the two electric push rods are contracted to drive the mounting ring, the round cover, the hollow rotating shaft, the cross frame, the dual-axis motor, the grinding wheel, the planetary gear reduction assembly, the column gear and the inner gear ring to move downward. After the grinding wheel contacts the end face of the pump cover, the grinding wheel rotates while revolving along the circumference of the pump cover. The grinding wheel grinds the end face of the pump cover more comprehensively and evenly, thereby improving the accuracy of the pump cover after grinding.

[0014] 2. While the pressing piston rod and the ball are driven downward by the hollow shaft, the pressing piston rod and the ball are also extended downward in the hollow shaft. After the grinding wheel contacts the end face of the pump cover, the ball just presses against the inner bottom of the pump cover, so that the pump cover can be pressed and corrected in the vertical direction, so that the pump cover can be placed more flatly in the placement cylinder. The operator then fixes the pump cover with an arc-shaped clamping plate, thereby further improving the grinding accuracy of the pump cover.

[0015] 3. The corrugated groove disk is driven to rotate by the hollow rotating shaft, and the rotation of the corrugated groove disk drives the roller and the sliding frame to move back and forth on the mounting ring, and the sliding frame drives the guide frame to move back and forth, and the reciprocating movement of the guide frame drives the placing tube to move back and forth. When the grinding wheel grinds the end face of the pump cover, the pump cover in the placing tube will move back and forth, and when the grinding wheel grinds the end face of the pump cover, the pump cover also continuously moves back and forth, so that the grinding wheel can contact the end face of the pump cover more comprehensively, and then the end face of the pump cover can be ground more evenly, thereby further improving the grinding accuracy of the pump cover end face. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the first cross-sectional three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of a second cross-sectional three-dimensional structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the grinding mechanism and the driving mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the disassembled three-dimensional structure of the parts of the fastening mechanism, grinding mechanism and driving mechanism of the present invention.

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the pressing mechanism and the moving mechanism of the present invention.

[0023] Figure 8It is a three-dimensional structural schematic diagram of the pressing mechanism and the cleaning mechanism of the present invention.

[0024] Fig. 9 It is a bottom-up stereoscopic structural schematic diagram of the round cover and the cleaning mechanism of the present invention.

[0025] Fig.10 It is a three-dimensional structural schematic diagram of the placement cylinder, round cover and moving mechanism of the present invention.

[0026] Fig.11 It is a schematic diagram of the three-dimensional structure of the corrugated groove plate, the sliding frame and the roller of the present invention.

[0027] Fig.12 It is a schematic diagram of the cross-sectional three-dimensional structure of the corrugated groove disk of the present invention.

[0028] In the accompanying drawings: 1-base, 2-shell, 3-placing cylinder, 4-pump cover, 5-electric push rod, 6-mounting ring, 7-round cover, 81-arc clamping plate, 82-threaded knob, 91-hollow rotating shaft, 92-cross frame, 93-dual-axis motor, 94-grinding wheel, 101-planetary gear reduction assembly, 102-column gear, 103-inner ring gear, 111-pressing piston rod, 112-ball, 113-rotating joint, 114-cylinder body, 115-pressing piston rod, 1151-hard pipe, 116-hose, 121-driving groove, 122-sliding plate, 123-brush plate, 131-corrugated groove plate, 132-sliding frame, 133-roller, 134-guide frame. DETAILED DESCRIPTION

[0029] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0030] Embodiment 1: A reciprocating vacuum pump parts grinding machine, such as Figure 1-Figure 6As shown, it includes a base 1, a shell 2, a placement cylinder 3, a pump cover 4, an electric push rod 5, a mounting ring 6, a round cover 7, a fastening mechanism, a grinding mechanism and a driving mechanism. The shell 2 is installed on the base 1, and a placement cylinder 3 is slidably provided on the base 1. The pump cover 4 to be processed is placed on the placement cylinder 3. Two electric push rods 5 are installed on the base 1, and the two electric push rods 5 are symmetrically arranged. A mounting ring 6 is installed between the top ends of the telescopic rods of the two electric push rods 5, and a round cover 7 is installed on the mounting ring 6. A fastening mechanism is provided on the placement cylinder 3, and the fastening mechanism is used to fasten the pump cover 4. A grinding mechanism is provided in the round cover 7, and the grinding mechanism is used to grind the end surface of the pump cover 4. A driving mechanism is provided on the round cover 7 and the grinding mechanism, and the driving mechanism is used to drive the grinding mechanism to move.

[0031] The fastening mechanism includes an arc-shaped clamping plate 81 and a threaded knob 82. Two arc-shaped clamping plates 81 are slidingly provided on the placement tube 3. The two arc-shaped clamping plates 81 will slide horizontally along the placement tube 3. The two arc-shaped clamping plates 81 are symmetrically arranged. Two threaded knobs 82 are threadedly connected to the placement tube 3. The two threaded knobs 82 are symmetrically arranged. The ends of the two threaded knobs 82 that are close to each other are respectively connected to the two arc-shaped clamping plates 81 by bearings.

[0032] The sides of the two arc-shaped clamping plates 81 that are close to each other are provided with a rough surface.

[0033] The grinding mechanism includes a hollow rotating shaft 91, a cross frame 92, a dual-axis motor 93 and a grinding wheel 94. The hollow rotating shaft 91 is rotatably installed at the center position of the round cover 7, and the cross frame 92 is installed on the hollow rotating shaft 91. The cross frame 92 is located in the round cover 7. The dual-axis motor 93 is installed on one side of the cross frame 92, and the grinding wheel 94 is installed on the output shaft below the dual-axis motor 93.

[0034] The driving mechanism includes a planetary gear reduction assembly 101, a column gear 102 and an inner ring gear 103. The planetary gear reduction assembly 101 is installed on the side of the cross frame 92 close to the dual-axis motor 93. The input end of the planetary gear reduction assembly 101 is connected to the output shaft on the upper part of the dual-axis motor 93 through a coupling. The output end of the planetary gear reduction assembly 101 is installed with a column gear 102 in a key connection manner. The inner ring gear 103 is fixedly installed in the round cover 7, and the column gear 102 is meshed with the inner ring gear 103.

[0035] The operator places the pump cover 4 into the placement tube 3, and then rotates the threaded knobs 82 on both sides, and the threaded knobs 82 on both sides drive the arc-shaped clamping plates 81 on both sides to move towards each other, and the arc-shaped clamping plates 81 on both sides fix the pump cover 4, and then starts the double-axis motor 93 to rotate, and one of the output shafts of the double-axis motor 93 rotates to drive the grinding wheel 94 to rotate, and the other output shaft of the double-axis motor 93 drives the input end of the planetary gear reduction assembly 101 to rotate, and the planetary gear reduction assembly 101 is rotated. The output end after deceleration drives the column gear 102 to rotate slowly, and the column gear 102 moves along the inner gear ring 103, thereby driving the hollow shaft 91, the cross frame 92, the double-axis motor 93, the grinding wheel 94 and the planetary gear reduction assembly 101 to move along the inner gear ring 103, and then the operator controls the telescopic rods of the two electric push rods 5 to retract, and the retraction of the telescopic rods of the two electric push rods 5 drives the mounting ring 6, the round cover 7, the hollow shaft 91, the cross frame 92, the double-axis motor 93, the grinding wheel 94, the planetary gear The reduction assembly 101, the column gear 102 and the inner gear ring 103 move downward, and after the grinding wheel 94 contacts the end surface of the pump cover 4, the grinding wheel 94 rotates and revolves along the circumference of the pump cover 4, and the grinding wheel 94 grinds the end surface of the pump cover 4 more comprehensively and evenly, thereby improving the accuracy of the pump cover 4 after grinding. After the end surface of the pump cover 4 is ground, the operator controls the extension of the telescopic rods of the two electric push rods 5, and the extension of the telescopic rods of the two electric push rods 5 drives the installation ring 6, the round cover 7, and the hollow shaft 91 , cross frame 92, dual-axis motor 93, grinding wheel 94, planetary gear reduction assembly 101, column gear 102 and inner ring gear 103 move upwards. After the grinding wheel 94 is separated from the end face of the pump cover 4, the operator turns off the dual-axis motor 93. Then the operator rotates the threaded knobs 82 on both sides in reverse. The threaded knobs 82 on both sides drive the arc-shaped clamping plates 81 on both sides to move away from each other. The arc-shaped clamping plates 81 on both sides no longer fix the pump cover 4. The operator can take out the ground pump cover 4.

[0036] Embodiment 2: Based on embodiment 1, Figure 7-Figure 9As shown, it also includes a pressing mechanism, which is arranged on the housing 2 and the hollow shaft 91. The pressing mechanism is used to press the pump cover 4. The pressing mechanism includes a pressing piston rod 111, a ball 112, a rotary joint 113, a cylinder 114, a downward pressing piston rod 115, a hard tube 1151 and a hose 116. The pressing piston rod 111 is slidably arranged in the hollow shaft 91, and the rod portion of the pressing piston rod 111 passes through the lower part of the hollow shaft 91. The rod end of the pressing piston rod 111 is provided with a ball 112. The upper part of the hollow shaft 91 is rotatably installed with a rotary joint 113. The rotary joint 113 is connected to the hollow rotating shaft 91, and a hard tube 1151 is rotatably installed on the other end of the rotary joint 113. The rotary joint 113 is connected to the hard tube 1151. A cylinder body 114 is installed on the inner side of the shell 2. A downward piston rod 115 is slidably provided in the cylinder body 114. The rod portion of the downward piston rod 115 passes through the upper part of the cylinder body 114, and the rod portion of the downward piston rod 115 is connected to the mounting ring 6. A hose 116 is connected between the cylinder body 114 and the other end of the hard tube 1151. The hose 116 is connected to the cylinder body 114, and the hose 116 is connected to the hard tube 1151.

[0037] It also includes a cleaning mechanism, which is arranged on the round cover 7 and the cross frame 92. The cleaning mechanism is used to clean the debris ground off the pump cover 4. The cleaning mechanism includes a sliding plate 122 and a brush plate 123. A driving groove 121 is opened at the top of the round cover 7, and a sliding plate 122 is slidably installed on the other side of the cross frame 92. The sliding plate 122 will slide along the cross frame 92. The top of the sliding plate 122 is located in the driving groove 121. The other end of the sliding plate 122 is installed with a brush plate 123, and a plurality of bristles are evenly spaced at the bottom of the brush plate 123.

[0038] When the telescopic rods of the two electric push rods 5 are contracted and drive the mounting ring 6, the round cover 7, the hollow shaft 91, the cross frame 92, the dual-axis motor 93, the grinding wheel 94, the planetary gear reduction assembly 101, the column gear 102 and the inner gear ring 103 to move downward, the mounting ring 6 drives the pressing piston rod 115 to move downward in the cylinder body 114, and the gas in the cylinder body 114 enters the hollow shaft 91 through the hose 116 and the rotary joint 113. When the hollow shaft 91 drives the pressing piston rod 111 and the ball 112 to move downward, the pressing piston rod 111 and the ball 112 also extend downward in the hollow shaft 91. After the grinding wheel 94 contacts the end surface of the pump cover 4, the ball 112 just supports the inner bottom of the pump cover 4. The part can be pressed and corrected in the vertical direction of the pump cover 4, so that the pump cover 4 can be placed more flatly in the placement tube 3. The operator then fixes the pump cover 4 through the arc clamping plate 81, so as to improve the grinding accuracy of the pump cover 4. When the hollow rotating shaft 91 rotates, the hard tube 1151 will not rotate under the action of the rotating joint 113; when the mounting ring 6 drives the pressing piston rod 115 to move upward in the cylinder body 114, the air in the hollow rotating shaft 91 is drawn into the cylinder body 114 through the hose 116 and the rotating joint 113. When the hollow rotating shaft 91 drives the pressing piston rod 111 and the ball 112 to move upward, the pressing piston rod 111 and the ball 112 also shrink and reset upward in the hollow rotating shaft 91.

[0039] When the shell 2, the hollow rotating shaft 91 and the cross frame 92 move downward, the sliding plate 122 and the brush plate 123 are driven to move downward. After the brush plate 123 moves downward, it contacts the end surface of the pump cover 4. When the hollow rotating shaft 91, the cross frame 92, the sliding plate 122 and the brush plate 123 rotate, the sliding plate 122 and the brush plate 123 will continuously move back and forth horizontally under the action of the driving groove 121. The bristles on the brush plate 123 continuously move to clean the debris ground from the pump cover 4 more comprehensively, thereby reducing the residue of debris on the pump cover 4, and further avoiding the debris from affecting the grinding wheel 94 on the grinding of the end surface of the pump cover 4, which can further improve the grinding accuracy of the end surface of the pump cover 4.

[0040] Embodiment 3: Based on embodiment 2, Figure 10-12As shown, it also includes a moving mechanism, which is arranged on the placement cylinder 3, the mounting ring 6 and the hollow rotating shaft 91. The moving mechanism is used to drive the pump cover 4 to move. The moving mechanism includes a corrugated groove disk 131, a sliding frame 132, a roller 133 and a guide frame 134. The hollow rotating shaft 91 is equipped with a corrugated groove disk 131, and the corrugated groove disk 131 has a corrugated groove in the circumference. The corrugated groove disk 131 is located on the outer upper part of the round cover 7. A sliding frame 132 is slidably provided on the mounting ring 6. The sliding frame 132 will slide horizontally along the mounting ring 6. A roller 133 is rotatably installed on one side of the sliding frame 132, and the roller 133 is located in the corrugated groove of the corrugated groove disk 131. A guide frame 134 is installed on one side of the placement cylinder 3, and the other side of the sliding frame 132 is slidably connected to the guide frame 134, and the sliding frame 132 will slide vertically along the guide frame 134.

[0041] When the mounting ring 6, the round cover 7, the hollow rotating shaft 91, the corrugated groove disk 131, the sliding frame 132 and the roller 133 move downward, the sliding frame 132 moves downward on the guide frame 134, and the hollow rotating shaft 91 drives the corrugated groove disk 131 to rotate. The rotation of the corrugated groove disk 131 drives the roller 133 and the sliding frame 132 to reciprocate on the mounting ring 6. The sliding frame 132 drives the guide frame 134 to reciprocate. The reciprocating movement of the guide frame 134 drives the placing tube 3 to reciprocate. When the grinding wheel 94 grinds the end face of the pump cover 4, the pump cover 4 in the placing tube 3 will reciprocate. When the grinding wheel 94 grinds the end face of the pump cover 4, the pump cover 4 also continuously reciprocates, so that the grinding wheel 94 can contact the end face of the pump cover 4 more comprehensively, and then the end face of the pump cover 4 can be ground more evenly, thereby further improving the grinding accuracy of the end face of the pump cover 4.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A reciprocating vacuum pump parts grinding machine, characterized in that: The invention comprises a base (1), a shell (2), a placement cylinder (3), a pump cover (4), an electric push rod (5), a mounting ring (6), a round cover (7), a fastening mechanism, a grinding mechanism and a driving mechanism. The base (1) is mounted with a shell (2). The base (1) is slidably provided with a placement cylinder (3). A pump cover (4) to be processed is placed on the placement cylinder (3). Two electric push rods (5) are mounted on the base (1). The two electric push rods (5) are symmetrically arranged. A mounting ring (6) is mounted between the top ends of the telescopic rods of the two electric push rods (5). A round cover (7) is mounted on the mounting ring (6). The placement cylinder (3) is provided with a fastening mechanism for fastening the pump cover (4). A grinding mechanism is arranged inside the round cover (7). The grinding mechanism is used to grind the end surface of the pump cover (4). A driving mechanism is arranged on the round cover (7) and the grinding mechanism. The driving mechanism is used to drive the grinding mechanism to move. The grinding mechanism comprises a hollow rotating shaft (91), a cross frame (92), a double-axis motor (93) and a grinding wheel (94); the hollow rotating shaft (91) is rotatably mounted at the center of the circular cover (7); the cross frame (92) is mounted on the hollow rotating shaft (91); the cross frame (92) is located inside the circular cover (7); the double-axis motor (93) is mounted on one side of the cross frame (92); and the grinding wheel (94) is mounted on one output shaft of the double-axis motor (93); The driving mechanism comprises a planetary gear reduction assembly (101), a column gear (102) and an inner gear ring (103); the planetary gear reduction assembly (101) is installed on a side of the cross frame (92) close to the dual-axis motor (93); the input end of the planetary gear reduction assembly (101) is connected to the other output shaft of the dual-axis motor (93); the column gear (102) is installed on the output end of the planetary gear reduction assembly (101); the inner gear ring (103) is installed in the round cover (7); the column gear (102) meshes with the inner gear ring (103); The invention also comprises a pressing mechanism, which is arranged on the housing (2) and the hollow rotating shaft (91), and is used to press the pump cover (4). The pressing mechanism comprises a pressing piston rod (111), a ball (112), a rotary joint (113), a cylinder body (114), a downward pressing piston rod (115), a hard pipe (1151) and a hose (116). The pressing piston rod (111) is slidably arranged in the hollow rotating shaft (91), the rod portion of the pressing piston rod (111) passes through the lower part of the hollow rotating shaft (91), and the rod end of the pressing piston rod (111) is provided with a ball (112). The upper part of the hollow rotating shaft (91) is rotatably mounted with a rotary joint (113). The rotary joint (113) 113) is connected to the hollow rotating shaft (91), a hard tube (1151) is rotatably mounted on the other end of the rotating joint (113), the rotating joint (113) is connected to the hard tube (1151), a cylinder body (114) is mounted on the inner side of the housing (2), a downward pressing piston rod (115) is slidably mounted in the cylinder body (114), the rod portion of the downward pressing piston rod (115) passes through the upper part of the cylinder body (114), the rod portion of the downward pressing piston rod (115) is connected to the mounting ring (6), a hose (116) is connected between the cylinder body (114) and the other end of the hard tube (1151), the hose (116) is connected to the cylinder body (114), and the hose (116) is connected to the hard tube (1151).

2. A reciprocating vacuum pump parts grinding machine as claimed in claim 1, characterized in that: The fastening mechanism comprises an arc-shaped clamping plate (81) and a threaded knob (82); the placement cylinder (3) is slidably provided with two arc-shaped clamping plates (81), the two arc-shaped clamping plates (81) are symmetrically arranged; the placement cylinder (3) is threadedly connected with two threaded knobs (82), the two threaded knobs (82) are symmetrically arranged; and the ends of the two threaded knobs (82) that are close to each other are respectively rotatably connected to the two arc-shaped clamping plates (81).

3. A reciprocating vacuum pump parts grinding machine as claimed in claim 2, characterized in that: The sides of the two arc-shaped clamping plates (81) close to each other are provided with a rough surface.

4. A reciprocating vacuum pump parts grinding machine as claimed in claim 3, characterized in that: The invention also includes a cleaning mechanism, which is arranged on the round cover (7) and the cross frame (92) and is used to clean the debris ground off the pump cover (4). The cleaning mechanism includes a sliding plate (122) and a brush plate (123). A driving groove (121) is opened at the top of the round cover (7), and a sliding plate (122) is slidably mounted on the other side of the cross frame (92). The top of the sliding plate (122) is located in the driving groove (121), and the bottom of the sliding plate (122) is mounted with a brush plate (123).

5. A reciprocating vacuum pump parts grinding machine as claimed in claim 4, characterized in that: The invention also comprises a moving mechanism, which is arranged on the placement cylinder (3), the mounting ring (6) and the hollow rotating shaft (91). The moving mechanism is used to drive the pump cover (4) to move. The moving mechanism comprises a corrugated groove disc (131), a sliding frame (132), a roller (133) and a guide frame (134). The hollow rotating shaft (91) is mounted with a corrugated groove disc (131), the corrugated groove disc (131) has a corrugated groove in the circumferential direction, and the corrugated groove disc (131) is located above the round cover (7). The mounting ring (6) is slidably provided with a sliding frame (132), and a roller (133) is rotatably mounted on the upper part of the sliding frame (132). The roller (133) is located in the corrugated groove of the corrugated groove disc (131). A guide frame (134) is mounted on one side of the placement cylinder (3), and the lower part of the sliding frame (132) is slidably connected to the guide frame (134).

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