End face grinding and polishing device for piston pin

Abstract

The end face grinding and polishing device comprises supporting plates and a motor installed at the bottom, the number of the supporting plates is two, a first connecting plate is fixedly connected to the middle of the position between the two supporting plates, and first installing plates are symmetrically fixed to the bottom of the first connecting plate; grinding and polishing are conducted through the top grinding piece and the polishing piece, the problem that the end face of the piston pin needs to be ground and polished in the production process of the piston pin is solved, the surface of the end face is smoother through grinding and polishing, friction resistance between the piston pin and a connecting rod, a crankshaft and other components is reduced, and therefore abrasion is reduced, and the service life of the components is prolonged; and metal chippings are collected through the discharging port, and the problems that in the grinding process, due to the fact that metal chippings are likely to be generated during metal grinding, the metal chippings are inconvenient to collect during high-speed rotation of the grinding machine, mechanical gaps are likely to be blocked, and use of the device is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of piston pin manufacturing technology, specifically to a device for grinding and polishing the end face of piston pins. Background Technology

[0002] A piston pin is a cylindrical pin installed on the piston skirt. Its center passes through the connecting rod small end hole and is used to connect the piston and the connecting rod. Its function is to transmit the gas force on the piston to the connecting rod, or to make the connecting rod small end drive the piston to move together. In order to reduce weight, piston pins are generally made of high-quality alloy steel and are hollow. Piston pins are used to connect the piston and the connecting rod and transmit the force on the piston to the connecting rod or vice versa.

[0003] Currently, Chinese patent CN219189589U discloses a piston pin grinding device. This utility model places the piston pin to be ground on a base plate and aligns it with the grinding head at the top. By rotating the handle, the handle drives the lead screw, which makes a threaded feed motion along the inner wall of the lead screw sleeve. The lead screw and the rotating sleeve rotate, pushing the two clamping blocks closer to the center position to clamp and fix the piston pin. It is suitable for piston pins of different sizes and solves the problem that previous piston pin grinding devices could not fix and process piston pins of different sizes according to actual needs, and had a limited range of applications.

[0004] During the production process, the piston pin end face needs to be ground and polished. This grinding and polishing makes the end face surface smoother, reduces the frictional resistance between the piston pin and components such as connecting rods and crankshafts, thereby reducing wear and extending the service life of parts. However, during the grinding process, metal grinding easily produces metal shavings, which are not easy to collect when the grinding machine is rotating at high speed. This can easily cause mechanical gap blockage and affect the use of the device. Utility Model Content

[0005] The technical problem to be solved by this utility model is as follows: During the production process, the piston pin end face needs to be ground and polished. By grinding and polishing, the end face surface becomes smoother, reducing the frictional resistance between the piston pin and components such as connecting rods and crankshafts, thereby reducing wear and extending the service life of parts. However, during the grinding process, metal grinding easily produces metal chips, which are not easy to collect when the grinding machine is rotating at high speed, easily causing mechanical gap blockage and affecting the use of the device.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A device for grinding and polishing the end face of a piston pin includes a support plate and a motor mounted at the bottom. Two support plates are provided, with a first connecting plate fixedly connected between them at the middle. Two first mounting plates are symmetrically fixed to the bottom of the first connecting plate. A motor is fixedly mounted between the two first mounting plates. A first sliding groove is formed on the top surface of the first connecting plate, and a first sliding plate is slidably connected inside the first sliding groove. A second mounting plate is fixedly connected to the top of the first sliding plate, and the bottom of the second mounting plate is fixedly connected to the output end of the motor. Two mounting grooves are symmetrically formed on the top of the second mounting plates. A rotating groove is formed in the middle of the two second mounting plates, and both ends of the rotating groove are connected through to the mounting groove. Two threaded rods are rotatably connected inside the two mounting grooves, and a rotating rod is fixedly connected between the two threaded rods. The rotating rod is rotatably connected to the rotating groove. A rocker arm is fixedly connected to one end of one of the threaded rods.

[0008] As a further embodiment of this utility model: threaded sleeves are fitted around the two threaded rods, and two fixing blocks are symmetrically fixed to the top of the threaded sleeves. A stabilizing plate is symmetrically fixed between the two fixing blocks.

[0009] As a further embodiment of this utility model: two second sliding grooves are symmetrically provided inside the two support plates, and two second sliding grooves are provided. A third sliding groove is symmetrically provided between the two support plates. The two third sliding grooves are connected to the second sliding grooves. Two second sliding plates are slidably connected inside the two second sliding grooves. A third sliding plate is fixedly connected between the two second sliding plates.

[0010] As a further embodiment of this utility model: a fourth sliding groove is symmetrically provided in the middle of the third sliding plate. There are two fourth sliding grooves. A first mounting rod is slidably connected inside the fourth sliding groove on one side, and a second mounting rod is slidably connected inside the fourth sliding groove on the other side. Limiting plates are symmetrically fixed to the top of the first mounting rod and the second mounting rod. There are two limiting plates. Insertion holes are symmetrically provided on one side of the first mounting rod and the second mounting rod. There are multiple insertion holes. An air pump is fixedly connected to the top of the third sliding plate.

[0011] As a further embodiment of this utility model: a first fixing plate is symmetrically fixed to the top of the third sliding plate, and two first fixing plates are provided. A pin is connected through the middle of the two first fixing plates, and two pins are provided. The two pins are slidably connected to the insertion hole.

[0012] As a further embodiment of this utility model: a third mounting plate is fixedly connected to the bottom of the first mounting rod, a fifth sliding groove is provided at the bottom of the third mounting plate, a fourth sliding plate is slidably connected inside the fifth sliding groove, a second fixing plate is fixedly connected to the bottom of the fourth sliding plate, a grinding disc is fixedly connected to the bottom of the second fixing plate, a fourth fixing plate is fixedly connected to the bottom of the second mounting rod, and a polishing disc is fixedly connected to the bottom of the fourth fixing plate.

[0013] As a further embodiment of this utility model: a third fixing plate is fixedly connected to the outer side of the fifth sliding groove, a second connecting plate is fixedly connected to the bottom of the third fixing plate, a discharge port is opened in the middle of the third fixing plate, two discharge ports are provided, a connecting pipe is connected through one side of the two discharge ports, two connecting pipes are provided, the middle of the two connecting pipes is connected through the third sliding plate, and the end of the two connecting pipes away from the discharge port is connected through the air suction pump.

[0014] The beneficial effects of this utility model are:

[0015] 1. In this utility model, a stabilizing plate is set up, and the second mounting plate on the top is driven to rotate by a motor. The second mounting plate drives the piston pin to rotate, and the piston pin is polished by the top grinding and polishing discs. This solves the problem that the piston pin end face needs to be ground and polished during the production process. By grinding and polishing it, the end face surface is smoother, reducing the frictional resistance between the piston pin and components such as connecting rods and crankshafts, thereby reducing wear and extending the service life of parts.

[0016] 2. In this utility model, a collection box is set up to collect metal scraps through the discharge port and suck them out by an air pump. This solves the problem that during the grinding process, metal scraps are easily generated and are difficult to collect when the grinding machine is rotating at high speed, which can easily cause mechanical gap blockage and affect the use of the device. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0019] Figure 2 This is a side view sectional structural diagram of the present invention;

[0020] Figure 3 This is a top view of the exterior of this utility model;

[0021] Figure 4 This is a schematic diagram of the fourth sliding plate structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the threaded rod structure of this utility model.

[0023] In the diagram: 1. Support plate; 101. Connecting plate; 102. First mounting plate; 103. First sliding groove; 104. First sliding plate; 105. Second mounting plate; 106. Mounting groove; 107. Threaded rod; 108. Rotating rod; 109. Threaded sleeve; 110. Rocker arm; 111. Fixing block; 112. Stabilizing plate; 113. Rotating groove; 114. Second sliding groove; 115. Third sliding groove; 116. Second sliding plate; 117. Third sliding plate; 118. Fourth sliding groove 1. Groove; 119. First mounting rod; 120. Second mounting rod; 121. Limiting plate; 122. First fixing plate; 123. Pin; 124. Insertion hole; 125. Third mounting plate; 126. Fifth sliding groove; 127. Fourth sliding plate; 128. Second fixing plate; 129. Grinding disc; 130. Third fixing plate; 131. Connecting plate; 132. Discharge port; 133. Connecting pipe; 134. Air pump; 135. Fourth fixing plate; 136. Polishing disc; 2. Motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-5 As shown, a device for grinding and polishing the end face of a piston pin includes a support plate 1 and a motor 2 mounted at the bottom. Two support plates 1 are provided, with a first connecting plate 101 fixedly connected between the two support plates 1 at their center. Two first mounting plates 102 are symmetrically fixed to the bottom of the first connecting plate 101. The motor 2 is fixedly mounted between the two first mounting plates 102. A first sliding groove 103 is formed on the top surface of the first connecting plate 101, and a first sliding plate 104 is slidably connected inside the first sliding groove 103. A second mounting plate 1 is fixedly connected to the top of the first sliding plate 104. 05. The bottom of the second mounting plate 105 is fixedly connected to the output end of the motor 2. The top of the second mounting plate 105 is symmetrically provided with mounting grooves 106. There are two mounting grooves 106. The middle of the two second mounting plates 105 is provided with a rotating groove 113. The two ends of the rotating groove 113 are connected to the mounting groove 106. The two mounting grooves 106 are rotatably connected with threaded rods 107. There are two threaded rods 107. A rotating rod 108 is fixedly connected between the two threaded rods 107. The rotating rod 108 is rotatably connected to the rotating groove 113. One end of one threaded rod 107 is fixedly connected to a rocker arm 110.

[0026] Two threaded rods 107 are fitted with threaded sleeves 109 on their outer sides. Two fixing blocks 111 are symmetrically fixed to the top of the threaded sleeves 109. Two stabilizing plates 112 are symmetrically fixed between the two fixing blocks 111.

[0027] Two second sliding grooves 114 are symmetrically provided inside the two support plates 1. There are two second sliding grooves 114. A third sliding groove 115 is symmetrically provided between the two support plates 1. The two third sliding grooves 115 are connected to the second sliding grooves 114. A second sliding plate 116 is slidably connected inside the two second sliding grooves 114. There are two second sliding plates 116. A third sliding plate 117 is fixedly connected between the two second sliding plates 116.

[0028] The third sliding plate 117 has symmetrically provided fourth sliding grooves 118 in the middle. There are two fourth sliding grooves 118. A first mounting rod 119 is slidably connected inside the fourth sliding groove 118 on one side, and a second mounting rod 120 is slidably connected inside the fourth sliding groove 118 on the other side. Limiting plates 121 are symmetrically fixed to the top of the first mounting rod 119 and the second mounting rod 120. There are two limiting plates 121. Insertion holes 124 are symmetrically provided on one side of the first mounting rod 119 and the second mounting rod 120. There are multiple insertion holes 124. An air pump 134 is fixedly connected to the top of the third sliding plate 117.

[0029] The top of the third sliding plate 117 is symmetrically fixed with a first fixing plate 122. There are two first fixing plates 122. The middle of the two first fixing plates 122 is connected by a pin 123. There are two pins 123. The two pins 123 are slidably connected to the socket 124.

[0030] The bottom of the first mounting rod 119 is fixedly connected to the third mounting plate 125. The bottom of the third mounting plate 125 is provided with a fifth sliding groove 126. The interior of the fifth sliding groove 126 is slidably connected to a fourth sliding plate 127. The bottom of the fourth sliding plate 127 is fixedly connected to a second fixing plate 128. The bottom of the second fixing plate 128 is fixedly connected to a grinding disc 129. The bottom of the second mounting rod 120 is fixedly connected to a fourth fixing plate 135. The bottom of the fourth fixing plate 135 is fixedly connected to a polishing disc 136.

[0031] A third fixing plate 130 is fixedly connected to the outer side of the fifth sliding groove 126. A second connecting plate 131 is fixedly connected to the bottom of the third fixing plate 130. A discharge port 132 is opened in the middle of the third fixing plate 130. There are two discharge ports 132. A connecting pipe 133 is connected through one side of the two discharge ports 132. There are two connecting pipes 133. The middle of the two connecting pipes 133 is connected through to the third sliding plate 117. The end of the two connecting pipes 133 away from the discharge port 132 is connected through to the suction pump 134.

[0032] The working principle of this utility model:

[0033] First, adjust the height of the first mounting rod 119 and the second mounting rod 120 at the top, push in the pin 123, and slide the pin 123 into the insertion hole 124 to stabilize the first mounting rod 119 and the second mounting rod 120. Rotate one side rocker arm 110, which drives one side threaded rod 107 to rotate. The threaded rod 107 drives the rotating rod 108 to rotate, and the rotating rod 108 drives the other side threaded rod 107 to rotate. The threaded rod 107 drives the threaded sleeve 109 to slide, and the threaded sleeve 109 drives the top fixing block 111 to move. The fixing block 111 drives the stabilizing plate 112 to move, and the stabilizing plate 112 clamps the piston pin that needs to be ground and polished.

[0034] Next, start motor 2. Motor 2 drives the second mounting plate 105 at the output end to rotate. The second mounting plate 105 drives the top stabilizing plate 112 to rotate. The stabilizing plate 112 drives the piston pin to rotate. The piston pin end face is polished by the grinding disc 129 at the bottom of the first mounting rod 119. The polishing debris is extracted through the discharge port 132 and enters the suction pump 134 through the connecting pipe 133 for collection.

[0035] Finally, pull the top third sliding plate 117, which drives the bottom fourth fixing plate 135 to move via the second mounting rod 120. The fourth fixing plate 135 then drives the bottom polishing plate 136 to move, polishing the piston pin after grinding via the polishing plate 136. Then, turn off the motor 2 and remove the polished piston pin.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A device for grinding and polishing the end surface of a piston pin, comprising a support plate (1) and a motor (2) mounted at the bottom, characterized in that: Two support plates (1) are provided, a first connecting plate (101) is fixedly connected in the middle between the two support plates (1), a first mounting plate (102) is symmetrically fixed at the bottom of the first connecting plate (101), two first mounting plates (102) are provided, a motor (2) is fixedly installed between the two first mounting plates (102), a first sliding groove (103) is provided on the top surface of the first connecting plate (101), a first sliding plate (104) is slidably connected inside the first sliding groove (103), a second mounting plate (105) is fixedly connected at the top of the first sliding plate (104), and the bottom of the second mounting plate (105) is symmetrically fixed to the motor (2). The output end of the second mounting plate (105) is fixedly connected, the top of the second mounting plate (105) is symmetrically provided with mounting grooves (106), two mounting grooves (106) are provided, a rotation groove (113) is provided in the middle of the two second mounting plates (105), both ends of the rotation groove (113) are through-connected with the mounting groove (106), the insides of the two mounting grooves (106) are rotatably connected with threaded rods (107), two threaded rods (107) are provided, a rotation rod (108) is fixedly connected between the two threaded rods (107), the rotation rod (108) is rotatably connected to the rotation groove (113), and one end of the threaded rod (107) on one side is fixedly connected with a rocker (110); A first mounting rod (119) and a second mounting rod (120) are arranged above the first connecting plate (101); a third mounting plate (125) is fixedly connected to the bottom of the first mounting rod (119); a fifth sliding groove (126) is provided at the bottom of the third mounting plate (125); a fourth sliding plate (127) is slidably connected inside the fifth sliding groove (126); a second fixed plate (128) is fixedly connected to the bottom of the fourth sliding plate (127); a polishing sheet (129) is fixedly connected to the bottom of the second fixing plate (128); a fourth fixed plate (135) is fixedly connected to the bottom of the second mounting rod (120); and a polishing sheet (136) is fixedly connected to the bottom of the fourth fixing plate (135).

2. The end surface grinding and polishing device for a piston pin according to claim 1, characterized in that: The outer sleeves of the two threaded rods (107) are provided with threaded sleeves (109), the tops of the threaded sleeves (109) are symmetrically fixed with fixing blocks (111), two fixing blocks (111) are provided, and a stabilizing plate (112) is symmetrically fixed between the two fixing blocks (111), two stabilizing plates (112) are provided.

3. The end surface grinding and polishing device for a piston pin according to claim 1, characterized in that: The two support plates (1) are symmetrically provided with second sliding grooves (114) inside, and two second sliding grooves (114) are provided. A third sliding groove (115) is symmetrically provided between the two support plates (1), and the two third sliding grooves (115) are connected to the second sliding grooves (114) through, and the two second sliding grooves (114) are slidably connected with second sliding plates (116) inside, and two second sliding plates (116) are provided. A third sliding plate (117) is fixedly connected between the two second sliding plates (116).

4. The end surface grinding and polishing device for a piston pin according to claim 3, characterized in that: A fourth sliding groove (118) is symmetrically provided in the middle of the third sliding plate (117), and two fourth sliding grooves (118) are provided. The interior of the fourth sliding groove (118) on one side is slidably connected to the first mounting rod (119), and the interior of the fourth sliding groove (118) on the other side is slidably connected to the second mounting rod (120). A limiting plate (121) is symmetrically fixed on the top of the first mounting rod (119) and the second mounting rod (120), and two limiting plates (121) are provided. One side of the first mounting rod (119) and the second mounting rod (120) is symmetrically provided with a socket (124), and a plurality of sockets (124) are provided. An air suction pump (134) is fixedly connected to the top of the third sliding plate (117).

5. The end surface grinding and polishing device for a piston pin according to claim 3, characterized in that: A first fixing plate (122) is symmetrically fixed to the top of the third sliding plate (117), two first fixing plates (122) are provided, a latch (123) is connected through the middle of the two first fixing plates (122), two latches (123) are provided, and the two latches (123) are slidably connected to the socket (124).

6. The end surface grinding and polishing device for a piston pin according to claim 1, characterized in that: A third fixed plate (130) is fixedly connected to the outer side of the fifth sliding groove (126), a second connecting plate (131) is fixedly connected to the bottom of the third fixed plate (130), a discharge port (132) is provided in the middle of the third fixed plate (130), two discharge ports (132) are provided, one side of the two discharge ports (132) is connected through a connecting pipe (133), two connecting pipes (133) are provided, the middle parts of the two connecting pipes (133) are connected through the third sliding plate (117), and one end of the two connecting pipes (133) away from the discharge port (132) is connected through the suction pump (134).

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