An automatic assembly device for hydraulic tappets

Abstract

The present invention discloses an automatic assembly device for hydraulic tappets, which includes a semi-finished product assembly line (1), a finished product assembly line (2) and a finished product maintenance line (3); the semi-finished product assembly line (1) is used to assemble a tappet body, a spring and a plunger into a semi-finished product, the finished product assembly line (2) is used to snap a snap ring onto a ball plug and then assemble the ball plug with the semi-finished product, and the finished product maintenance line (3) is used to clean and package the assembled finished product. The present invention is used for the automatic assembly of hydraulic tappets.

Description

Technical Field

[0001] The present invention relates to the technical field of automated production equipment, and particularly to an automatic assembly equipment for hydraulic tappets. Background Art

[0002] The hydraulic tappet is an important component of an automobile engine. Although the part itself is not large, it affects the normal operation of the engine. The existing production mode of the hydraulic tappet is a combined production of operators and single-station auxiliary machines, and a pipeline production mode in which it is conveyed to the next workstation through a conveyor line. This mode may have the following problems and defects: low production efficiency, high cost, and heavy workload of operators; there are inconsistencies and material shortages in operator feeding, resulting in a high scrap rate; high proficiency requirements for workers, and there are undecidable factors of human factors, such as production capacity and finished product yield. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide a device for automatically completing hydraulic tappets.

[0004] To solve the above technical problem, the technical solution of the present invention is: an automatic assembly equipment for hydraulic tappets, including a semi-finished product assembly line, a finished product assembly line, and a finished product maintenance line; the semi-finished product assembly line is used to assemble a tappet body, a spring, and a plunger into a semi-finished product, the finished product assembly line is used to snap a retaining ring onto a ball plug, and then assemble the ball plug with the semi-finished product, and the finished product maintenance line is used to clean and package the assembled finished product.

[0005] Further, the semi-finished product assembly line includes a first conveying mechanism and a tappet body feeding mechanism, a spring assembly mechanism, and a plunger assembly manipulator sequentially arranged on the first conveying mechanism; the spring assembly mechanism includes a vibrating disk, a feeding channel, a cutting block, a downward pressing spring needle, and a jig, the feeding channel connects the vibrating disk and the cutting block, the cutting block and the downward pressing spring needle are arranged in parallel, and the jig is slidably arranged below the downward pressing spring needle and the jig.

[0006] Further, the tappet body feeding mechanism includes a feeding step, a material channel, and a feeding manipulator, the feeding step is connected to the material channel, and the feeding manipulator transfers the material on the material channel to the first conveying mechanism.

[0007] Further, a tappet body dust removal mechanism, a tappet body hole detection mechanism, a tappet body hardness detection mechanism, and a tappet body inner diameter detection mechanism are sequentially arranged between the tappet body feeding mechanism and the spring assembly mechanism on the first conveying mechanism. The tappet body dust removal mechanism includes a first air blowing structure and a dust suction structure; the tappet body hole detection mechanism includes a second air blowing structure and a sensor; the tappet body hardness detection mechanism includes a first thimble and a downward pressing test mechanism slidably arranged up and down; the tappet body inner diameter detection mechanism includes a fixed block, a test rod, and a plurality of rotatably arranged jigs. The test rod is arranged above the fixed block in a liftable manner, and the jigs can be rotated onto the fixed block.

[0008] Further, a spring detection mechanism is also arranged between the spring assembly mechanism and the plunger assembly manipulator on the first conveying mechanism. The spring detection mechanism detects whether the spring is installed in place through a movably arranged probe.

[0009] Further, the finished product assembly line includes a second conveying mechanism, and a ball plug feeding mechanism, a snap ring feeding mechanism, and a pre-assembly mechanism are sequentially arranged on the second conveying mechanism; the snap ring feeding mechanism feeds the snap ring onto the snap ring fixture of the snap ring feeding mechanism, and the ball plug feeding mechanism feeds the ball plug and snaps it into the snap ring of the snap ring fixture; the pre-assembly mechanism includes a single-axis grasping mechanism and a pre-pressing structure. The single-axis grasping mechanism takes out the ball plug from the snap ring fixture and installs it on the semi-finished product conveyed by the second conveying mechanism, and the pre-pressing structure presses the ball plug into the semi-finished product.

[0010] Further, a semi-finished product oil injection mechanism and a sedimentation test mechanism are sequentially arranged in front of the pre-assembly mechanism on the second conveying mechanism. The sedimentation test mechanism includes a support rod and a pressing rod, and the pressing rod is arranged above the support rod in a liftable manner.

[0011] Further, a hairpin detection mechanism, a compression height detection mechanism, a ball plug pressing mechanism, a ball plug hole detection mechanism, a softness detection mechanism, and a finished product oil injection mechanism are sequentially arranged behind the pre-assembly mechanism on the second conveying mechanism; the hairpin detection mechanism includes a second thimble at the lower part and a test head movably arranged at the upper part; the compression height detection mechanism includes a second ejector rod at the lower part and a compression head movably arranged at the upper part; the ball plug pressing mechanism is used for pressing the ball plug on the finished product; the ball plug hole detection mechanism is used for detecting whether the size of the hole on the ball plug is qualified; the softness detection mechanism is used for detecting whether the working performance of the finished product is qualified; the finished product oil injection mechanism is used for injecting oil into the finished product.

[0012] Further, both the first conveying mechanism and the second conveying mechanism are screw conveying devices. The screw conveying device includes a screw, a mounting plate, side baffles, and a fixing structure. The screw is axially rotatably installed on the mounting plates at both ends, and the side baffles and the fixing structure are arranged on the side of the screw.

[0013] Furthermore, the finished product maintenance line includes a degreasing mechanism, a marking mechanism, an anti-rust oil coating mechanism, a loading manipulator, and a code scanning mechanism. The degreasing mechanism is used to remove excess oil from the finished product. The marking mechanism is used to mark the finished product. The anti-rust oil coating mechanism is used to coat the finished product with anti-rust oil. The code scanning mechanism is used for code scanning and identification of the finished product. The loading manipulator is used to load the finished product into the material box.

[0014] The beneficial effects achieved by the present invention are mainly as follows: The automatic assembly and detection of hydraulic tappets are realized through the semi-finished product assembly line, the finished product assembly line, and the finished product maintenance line, improving work efficiency and reducing the work intensity of the staff. The screw conveyor mechanism is used for feeding, enabling stable and precise feeding of the columnar hydraulic tappet products. The screw conveyor mechanism is provided with a fixed structure, facilitating fixing the conveyed products during the conveying process for processing and assembly. Multiple detections are set during the product assembly process to ensure the reliable and stable use of the products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the semi-finished product assembly line of the hydraulic tappet automatic assembly equipment in the first embodiment of the present invention;

[0016] Figure 2 It is a schematic structural diagram of the finished product assembly line of the hydraulic tappet automatic assembly equipment in the first embodiment of the present invention;

[0017] Figure 3 It is a schematic structural diagram of the finished product maintenance line of the hydraulic tappet automatic assembly equipment in the first embodiment of the present invention;

[0018] Figure 4 It is a schematic structural diagram of the first conveyor mechanism of the semi-finished product assembly line in the first embodiment of the present invention;

[0019] Figure 5 It is a schematic structural diagram of the tappet body dust removal mechanism of the semi-finished product assembly line in the first embodiment of the present invention;

[0020] Figure 6 It is a schematic structural diagram of the tappet body hole detection mechanism of the semi-finished product assembly line in the first embodiment of the present invention;

[0021] Figure 7 It is a schematic structural diagram of the tappet body hardness detection mechanism of the semi-finished product assembly line in the first embodiment of the present invention;

[0022] Figure 8 It is a schematic structural diagram of the tappet body inner diameter detection mechanism of the semi-finished product assembly line in the first embodiment of the present invention;

[0023] Figure 9Schematic structural diagram of the spring assembly mechanism of the semi-finished product assembly line in the first embodiment of the present invention;

[0024] Figure 10 Schematic structural diagram of the spring detection mechanism of the semi-finished product assembly line in the first embodiment of the present invention;

[0025] Figure 11 Schematic structural diagram of the settlement test mechanism of the finished product assembly line in the first embodiment of the present invention;

[0026] Figure 12 Schematic structural diagram of the hairpin detection mechanism of the finished product assembly line in the first embodiment of the present invention;

[0027] Figure 13 Schematic structural diagram of the compression height detection mechanism of the finished product assembly line in the first embodiment of the present invention;

[0028] Figure 14 Schematic cross-sectional structural diagram of a hydraulic tappet;

[0029] Figure 15 Process flow chart of the assembly of the hydraulic tappet.

[0030] Explanation of reference numerals: 1 - semi-finished product assembly line, 11 - first conveying mechanism, 111 - screw, 112 - mounting plate, 113 - side baffle, 114 - fixing structure, 12 - tappet body feeding mechanism, 121 - feeding step, 122 - material channel, 123 - feeding manipulator, 13 - tappet body dust removal mechanism, 131 - first blowing structure, 132 - dust suction structure, 14 - tappet body hole detection mechanism, 141 - second blowing structure, 15 - tappet body hardness detection mechanism, 151 - first thimble, 152 - downward pressing test mechanism, 16 - tappet body inner diameter detection mechanism, 161 - fixing block, 162 - test rod, 163 - fixture, 17 - spring assembly mechanism, 171 - vibrating bowl, 172 - feeding channel, 173 - cutting block, 174 - downward pressing spring pin, 175 - jig, 18 - spring detection mechanism, 181 - probe, 19 - plunger assembly manipulator, 110 - first transfer manipulator.

[0031] 2 - finished product assembly line, 201 - second conveying mechanism, 202 - semi-finished product oil injection mechanism, 203 - settlement test mechanism, 2031 - support rod, 2032 - pressing rod, 204 - ball plug feeding mechanism, 205 - snap ring feeding mechanism, 206 - pre-assembly mechanism, 2061 - grasping mechanism, 2062 - pre-pressing structure, 207 - hairpin detection mechanism, 2071 - second thimble, 208 - compression height detection mechanism, 2081 - ejector rod, 2082 - compression head, 209 - ball plug pressing mechanism, 210 - ball plug hole detection mechanism, 211 - softness detection mechanism, 212 - finished product oil injection mechanism, 213 - second transfer manipulator.

[0032] 3 - Finished product maintenance line, 31 - Degreasing mechanism, 32 - Marking mechanism, 33 - Antirust oil coating mechanism, 34 - Loading manipulator, 35 - Scanning mechanism. 4 - First transfer manipulator, 5 - Second transfer manipulator. 6 - Hydraulic tappet, 61 - Tappet body, 62 - Spring, 63 - Plug, 64 - Snap ring, 65 - Ball plug.

[0033] The accompanying drawings are only for illustrative purposes and should not be construed as limiting the patent; for better illustration of this embodiment, some components in the drawings may be omitted, enlarged or reduced, which does not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted; the same or similar reference numerals correspond to the same or similar components; the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as limiting the patent. Detailed implementation manners

[0034] For the convenience of those skilled in the art to understand, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] Embodiment 1

[0036] Refer to Figures 1 to 3 , a hydraulic tappet automatic assembly device, including a semi-finished product assembly line 1, a finished product assembly line 2 and a finished product maintenance line 3; the semi-finished product assembly line 1 is used to assemble the tappet body, spring and plunger into semi-finished products, the finished product assembly line 2 is used to snap the snap ring onto the ball plug and then assemble the ball plug with the semi-finished products, and the finished product maintenance line 3 is used to clean and box the assembled finished products.

[0037] Refer to Figure 1 , the semi-finished product assembly line 1 includes a first conveying mechanism 11 and a tappet body feeding mechanism 12, a spring assembly mechanism 17, and a plunger assembly manipulator 19 arranged in sequence on the first conveying mechanism 11. The tappet body feeding mechanism 12 includes a feeding step 121, a material channel 122 and a feeding manipulator 123. The feeding step 121 is connected to the material channel 122, and the feeding manipulator 123 transfers the material on the material channel 122 to the first conveying mechanism 11; when feeding the tappet body, it is first fed onto the material channel 122 through the feeding step 121, and then taken out from the material channel 122 by the feeding manipulator 123 and placed on the first conveying mechanism 11.

[0038] Refer to Figure 1 and Figure 9, after the tappet body 61 is loaded onto the first conveying mechanism 11, it is driven by the first conveying mechanism 11 to the station where the spring assembly mechanism 17 is located to install the spring 62. The spring assembly mechanism 17 includes a vibrating bowl 171, a feeding channel 172, a cutting block 173, a downward pressing spring pin 174 and a jig 175. The feeding channel 172 connects the vibrating bowl 171 and the cutting block 173. The cutting block 173 and the downward pressing spring pin 174 are arranged in parallel. The jig 175 is slidably arranged below the downward pressing spring pin 174 and the jig 175. When the spring 62 is loaded and assembled, it first enters the feeding channel 172 through the vibrating bowl 171. The cutting block 173 cuts off one spring 62 at the end of the feeding channel 172 and installs it into the tappet body 61 in the lower jig 175. Finally, the jig 175 slides below the downward pressing spring pin 174, and the spring 62 is pressed into the tappet body 61 by the downward pressing spring pin 174. Additionally, a transfer manipulator can be set at the spring installation station to transfer the tappet body from the first conveying mechanism 11 to the jig 175, and then transfer it back to the first conveying mechanism 11 for continuous conveying after installing the spring. The plunger assembly manipulator 19 realizes the assembly of the plunger 63 by taking the plunger 63 out of the plunger storage box and placing it on the spring 62 in the tappet body 61 on the first conveying mechanism 11.

[0039] In addition, referring to Figure 1 , the semi-finished product assembly line 1 is also provided with a plurality of detection mechanisms for detecting during the hydraulic tappet assembly process. Specifically, a tappet body dust removal mechanism 13, a tappet body hole detection mechanism 14, a tappet body hardness detection mechanism 15, and a tappet body inner diameter detection mechanism 16 are sequentially arranged at the position between the tappet body feeding mechanism 12 and the spring assembly mechanism 17 on the first conveying mechanism 11. Referring to Figure 5 , the tappet body dust removal mechanism 13 includes a first blowing structure 131 and a dust suction structure 132. During the dust removal operation, the first blowing structure 131 blows off the dust on the tappet body 61, and at the same time, the dust suction structure 132 absorbs the blown dust, so as to achieve the purpose of dust removal. Referring to Figure 6 , the tappet body hole detection mechanism 14 includes a second blowing structure 141 and a sensor (not shown in the figure). When detecting the tappet body hole, the second blowing structure 141 is connected to the upper opening of the tappet body 61 and blows air into the tappet body 61. The air flow blows out from the holes on the side of the tappet body 61, and the size of the blown air flow is sensed by the sensor to determine whether the holes of the tappet body 61 are ventilated and whether the hole size is qualified.

[0040] Referring to Figure 7, the tappet body hardness detection mechanism 15 includes a first thimble 151 and a downward pressure testing mechanism 152 that slides up and down; when testing the hardness of the tappet body 61, the first thimble 151 supports the tappet body 61 from below, and the downward pressure testing mechanism 152 above slides downward, and determines whether the hardness of the tappet body 61 is qualified based on the sliding displacement and the magnitude of the pressure. Refer to Figure 8 , the tappet body inner diameter detection mechanism 16 includes a fixed block 161, a test rod 162, and a plurality of rotatably arranged jigs 163. The test rod 162 is arranged above the fixed block 161 so as to be liftable and lowerable, and the jigs 163 can be rotated onto the fixed block 161; preferably, two jigs 163 are arranged and rotatably arranged on a rotary table, so that the tappet body 61 can be taken from the first conveying mechanism 11 to the fixed block 161 for cyclic operation. The test rod 162 can extend into the inner hole of the tappet body 61 fixed on the fixed block 161, and determines whether the inner diameter of the tappet body 61 is qualified by whether it can extend smoothly.

[0041] Refer to Figure 10 , a spring detection mechanism 18 is further arranged between the spring assembly mechanism 17 and the plunger assembly manipulator 19 on the first conveying mechanism 11. The spring detection mechanism 18 detects whether the spring is installed in place through a movably arranged probe 181.

[0042] After the semi-finished product assembly line 1 completes the semi-finished product assembly, the semi-finished product is loaded into the finished product assembly line 2 by the first transfer manipulator 4. Refer to Figure 2 , the finished product assembly line 2 includes a second conveying mechanism 201 and a ball plug feeding mechanism 204, a snap ring feeding mechanism 205, and a pre-assembly mechanism 206 sequentially arranged on the second conveying mechanism 201; the snap ring feeding mechanism 205 feeds the snap ring onto the snap ring jig of the snap ring feeding mechanism, and the ball plug feeding mechanism 204 feeds the ball plug 65 and snaps it into the snap ring 64 of the snap ring jig; the pre-assembly mechanism 206 includes a single-axis grasping mechanism 2061 and a pre-pressing structure 2062. The single-axis grasping mechanism 2061 takes out the ball plug from the snap ring jig and loads it onto the semi-finished product conveyed by the second conveying mechanism 201, and the pre-pressing structure 2062 presses the ball plug into the semi-finished product.

[0043] Refer to Figure 2 , a semi-finished product oil injection mechanism 202 and a sedimentation testing mechanism 203 are sequentially arranged in front of the pre-assembly mechanism 206 on the second conveying mechanism 201. The semi-finished product oil injection mechanism 202 injects oil into the tappet body 61 through an oil injection pipeline to facilitate subsequent testing. Refer to Figure 11, the sedimentation test mechanism 203 includes a support rod 2031 and a pressure rod 2032. The pressure rod 2032 is arranged above the support rod 2031 in a liftable manner. During the sedimentation test, the support rod 2031 supports the tappet body 61 from below, and the pressure rod 2032 presses into the plunger 63 installed inside the tappet body 61 to test whether the movement range of the plunger 63 in the tappet body 61 is qualified through the pressure rod 2032.

[0044] Refer to Figure 2 , after the preloading mechanism 206 at the rear section of the second conveying mechanism 201, a card detection mechanism 207, a compression height detection mechanism 208, a ball plug pressing mechanism 209, a ball plug hole detection mechanism 210, a softness detection mechanism 211, and a finished product oil injection mechanism 212 are sequentially arranged. Refer to Figure 12 , the card detection mechanism 207 includes a second ejector pin 2071 at the lower part and a test head (not shown in the figure) movably arranged at the upper part; the softness detection mainly detects whether the ball plug is installed in place. During the detection, the second ejector pin 2071 at the lower part presses down the ball plug 65, and the displacement of the ejector rod 2081 is determined through the test head, so as to determine whether the installation of the ball plug is qualified. Refer to Figure 13 , the compression height detection mechanism 208 includes an ejector rod 2081 at the lower part and a compression head 2082 movably arranged at the upper part; during the detection, the ejector rod 2081 at the lower part supports the tappet body 61, and the compression head 2082 movably arranged at the upper part presses the ball plug 65 to see whether the ball plug can move normally and its movement range. The ball plug pressing mechanism 209 is used to press the ball plug on the finished product, mainly further pressing the finished product with the ball plug not installed in place detected in the previous process through a pressure rod. The ball plug hole detection mechanism 210 is used to detect whether the size of the hole on the ball plug is qualified, and its structure is the same as that of the tappet inner diameter detection mechanism 16. The softness detection mechanism 211 is used to detect whether the working performance of the finished product is qualified, and it is confirmed whether the ball plug is installed in place by pressing the pressure rod again, that is, whether the installation of the plunger, spring, and snap ring is qualified at the same time. The finished product oil injection mechanism 212 is used to inject oil into the finished product.

[0045] Refer to Figure 4, the first conveying mechanism 11 or the second conveying mechanism 201 is a screw conveying device. The first conveying mechanism 11 includes a screw 111, a mounting plate 112, side baffles 113 and a fixing structure 114. The screw 111 is axially rotatably mounted on the mounting plates 112 at both ends. The side baffles 113 and the fixing structure 114 are arranged on the side of the screw 111. In this way, the recesses between the threads of the screw 111 can serve as the accommodation space for product conveying. As the screw 111 rotates, the accommodated products are driven from one end to the other end, thus realizing the conveying of the products. The side baffles are used to prevent the products from falling off from the side during the product conveying process. During the conveying process, the products can be fixed by the fixing structure 114 at the places where it is necessary to stop, which is convenient for processing and assembling. The fixing structure 114 can be realized by driving a U-shaped block through a cylinder. The rotation of the screw 111 on the mounting plate 112 can be realized by a driving device such as a motor. The structure of the second conveying mechanism 201 is the same as that of the first conveying mechanism 11.

[0046] After the finished product assembly line 2 completes the assembly of the finished product, the finished product is transferred to the finished product maintenance line 3 by the second transfer manipulator 5 for continuous operation. Refer to Figure 3 , the finished product maintenance line 3 includes a degreasing mechanism 31, a marking mechanism 32, an anti-rust oil coating mechanism 33, a tray loading manipulator 34 and a code scanning mechanism 35. The degreasing mechanism 31 is used to remove the excess oil on the finished product. The finished product can be placed in a container, and high-pressure gas is blown out from the inner wall of the container to remove the oil on the outer surface of the finished product. The marking mechanism 32 is used to mark information such as LOGO, production information, model, etc. on the finished product, and a common marking mechanism on the market can be used. The anti-rust oil coating mechanism 33 is used to coat anti-rust oil on the finished product. The finished product can be placed in a container, and anti-rust oil is sprayed from the inner wall of the container onto the outer surface of the finished product. The code scanning mechanism 35 is used for code scanning and identification of the finished product. The tray loading manipulator 34 is used to load the finished product into the material box. The code scanning mechanism 35 cooperates with the tray loading manipulator 34 to facilitate the traceability of the finished product.

[0047] Behind each of the foregoing monitoring mechanisms, a manipulator and an NG product discharge box can also be provided to move and place defective products.

[0048] Refer to Figure 14 and 15, the production process of the hydraulic tappet automatic assembly equipment of the present invention is as follows: First, on the semi-finished product assembly line 1, the processes of tappet body feeding, tappet body cleaning, tappet body hole detection, tappet body hardness detection, tappet body inner diameter detection, spring assembly, spring detection, and plug column assembly are completed in sequence; on the finished product assembly line 2, the processes of semi-finished product oil injection, sedimentation test, ball plug snap ring installation, ball plug pre-assembly, hairpin detection compression height detection, ball plug pressing, ball plug aperture detection, softness detection, and finished product oil injection are completed in sequence; on the finished product maintenance line 3, the processes of finished product surface degreasing, finished product marking, finished product anti-rust oil coating, finished product scanning, and finished product boxing are completed in sequence.

[0049] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An automatic assembly device for hydraulic tappets, characterized in that: It includes a semi-finished product assembly line (1), a finished product assembly line (2) and a finished product maintenance line (3); the semi-finished product assembly line (1) is used to assemble a tappet body, a spring and a plunger into a semi-finished product, the finished product assembly line (2) is used to snap a retaining ring onto a ball plug and then assemble the ball plug with the semi-finished product, and the finished product maintenance line (3) is used to clean and package the assembled finished product; The finished product assembly line (2) includes a second conveying mechanism (201) and a ball plug feeding mechanism (204), a retaining ring feeding mechanism (205), and a pre-assembly mechanism (206) sequentially arranged on the second conveying mechanism (201); the retaining ring feeding mechanism (205) feeds the retaining ring onto the retaining ring fixture of the retaining ring feeding mechanism, and the ball plug feeding mechanism (204) feeds the ball plug and snaps it into the retaining ring of the retaining ring fixture; the pre-assembly mechanism (206) includes a single-axis gripping mechanism (2061) and a pre-pressing structure (2062), the single-axis gripping mechanism (2061) takes out the ball plug from the retaining ring fixture and installs it on the semi-finished product conveyed by the second conveying mechanism (201), and the pre-pressing structure (2062) presses the ball plug into the semi-finished product; After the pre-assembly mechanism (206) on the second conveying mechanism (201), a hairpin detection mechanism (207), a compression height detection mechanism (208), a ball plug pressing mechanism (209), a ball plug hole detection mechanism (210), a softness detection mechanism (211) and a finished product oil injection mechanism (212) are sequentially arranged; the hairpin detection mechanism (207) includes a lower thimble (2071) and an upper test head movably arranged; the compression height detection mechanism (208) includes a lower ejector rod (2081) and an upper compression head (2082) movably arranged; the ball plug pressing mechanism (209) is used to press the ball plug on the finished product; the ball plug hole detection mechanism (210) is used to detect whether the size of the hole on the ball plug is qualified; the softness detection mechanism (211) is used to detect whether the working performance of the finished product is qualified; the finished product oil injection mechanism (212) is used to inject oil into the finished product.

2. The hydraulic tappet automatic assembly equipment according to claim 1, characterized in that: The semi-finished product assembly line (1) includes a first conveying mechanism (11) and a tappet body feeding mechanism (12), a spring assembly mechanism (17), and a plunger assembly manipulator (19) sequentially arranged on the first conveying mechanism (11); the spring assembly mechanism (17) includes a vibrating bowl (171), a feeding channel (172), a cutting block (173), a downward pressing spring pin (174) and a fixture (175), the feeding channel (172) connects the vibrating bowl (171) and the cutting block (173), the cutting block (173) and the downward pressing spring pin (174) are arranged in parallel, and the fixture (175) is slidably arranged below the downward pressing spring pin (174) and the cutting block (173).

3. The hydraulic tappet automatic assembly equipment according to claim 2, characterized in that: The tappet body feeding mechanism (12) includes a feeding step (121), a material channel (122), and a feeding manipulator (123). The feeding step (121) is connected to the material channel (122), and the feeding manipulator (123) transfers the material on the material channel (122) to the first conveying mechanism (11).

4. The hydraulic tappet automatic assembly equipment according to claim 2 or 3, characterized in that: Between the tappet body feeding mechanism (12) and the spring assembly mechanism (17) on the first conveying mechanism (11), there are successively arranged a tappet body dust removal mechanism (13), a tappet body hole detection mechanism (14), a tappet body hardness detection mechanism (15), and a tappet body inner diameter detection mechanism (16). The tappet body dust removal mechanism (13) includes a first blowing structure (131) and a dust suction structure (132); the tappet body hole detection mechanism (14) includes a second blowing structure (141) and a sensor; the tappet body hardness detection mechanism (15) includes a first thimble (151) and a downward pressing test mechanism (152) arranged to slide up and down; the tappet body inner diameter detection mechanism (16) includes a fixing block (161), a test rod (162), and several rotatably arranged clamps (163). The test rod (162) is arranged to be liftable above the fixing block (161), and the clamp (163) can be rotated onto the fixing block (161).

5. The hydraulic tappet automatic assembly equipment according to claim 4, characterized in that: Between the spring assembly mechanism (17) and the plunger assembly manipulator (19) on the first conveying mechanism (11), there is also arranged a spring detection mechanism (18). The spring detection mechanism (18) detects whether the spring is installed in place through a movably arranged probe (181).

6. The hydraulic tappet automatic assembly equipment according to claim 1, characterized in that: In front of the pre-assembly mechanism (206) on the second conveying mechanism (201), there are successively arranged a semi-finished product oil injection mechanism (202) and a sedimentation test mechanism (203). The sedimentation test mechanism (203) includes a support rod (2031) and a pressing rod (2032). The pressing rod (2032) is arranged to be liftable above the support rod (2031).

7. The hydraulic tappet automatic assembly equipment according to claim 2, characterized in that: Both the first conveying mechanism (11) and the second conveying mechanism (201) are screw conveying devices. The screw conveying device includes a screw, a mounting plate, side baffles, and a fixing structure. The screw is axially rotatably installed on the mounting plates at both ends, and the side baffles and the fixing structure are arranged on the side of the screw.

8. The hydraulic tappet automatic assembly equipment according to claim 1, characterized in that: The finished product maintenance line (3) includes an oil removal mechanism (31), a marking mechanism (32), an anti-rust oil coating mechanism (33), a tray loading manipulator (34), and a code scanning mechanism (35). The oil removal mechanism (31) is used to remove the excess oil outside the finished product. The marking mechanism (32) is used to mark the finished product. The anti-rust oil coating mechanism (33) is used to coat the anti-rust oil on the finished product. The code scanning mechanism (35) is used for code scanning and identification of the finished product. The tray loading manipulator (34) is used to load the finished product into the material box.

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