Tooth feeding pin pressing machine

Abstract

The utility model discloses a tooth feeding and pin pressing machine which comprises a machine cabinet, an operation table is arranged in the middle of the machine cabinet, a fixing base is fixedly arranged on the operation table, a plurality of tooth feeding and pin mounting devices are arranged around the fixing base, a pin pressing device is arranged above the fixing base, and a pin shaft feeding device is arranged on one side of the operation table. A control device is arranged at the upper part of the cabinet; according to the utility model, a plurality of gear feeding and pin mounting devices work simultaneously, a plurality of gears and pin shafts are synchronously pushed to the impact block in the fixed seat at one time, the speed is high, the efficiency is high, the labor cost is greatly reduced, and the occurrence of safety accidents is avoided; the pin feeding and gear pushing rod is divided into two layers which are staggered up and down, the upper layer is provided with the protruding part used for conveying the pin shaft, the lower layer is provided with the arc-shaped concave part used for pushing the gear, the pin shaft and the gear are rapidly and synchronously pushed to the fixing base, and the gear directly rushes into the gear cavity through the gear inlet. And the pin shaft in the pin shaft placing hole is just positioned above the pin shaft hole of the gear cavity.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a tooth feeding and pressing pin machine. Background Technology

[0002] like Figures 1-2 The impact block shown is an important component inside power tools such as electric wrenches, electric hammers, and electric picks, enabling reciprocating hammering of objects. It includes a gear shaft, gear cavity, gears, pins, pin holes, and positioning holes. The gear cavity typically has three or more gear openings, and the central hole of the gear corresponds to the pin hole in the gear cavity. During assembly, each gear must be placed into the gear cavity one by one, then the pin is inserted into the pin hole and pressed to secure the gear. Existing technologies all rely on manual assembly, which poses significant safety hazards and is extremely inefficient and costly. Therefore, there is a need to develop a highly automated gear feeding and pin pressing machine. Summary of the Invention

[0003] The purpose of this utility model is to provide a tooth feeding and pressing machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tooth feeding and pin pressing machine, comprising a cabinet, an operating table in the middle of the cabinet, a fixed seat fixedly provided on the operating table, a plurality of tooth feeding and pin loading devices provided around the fixed seat, a pin pressing device provided above the fixed seat, a pin feeding device provided on one side of the operating table, and a control device provided on the upper part of the cabinet.

[0005] The fixed base has a seat hole in the center for fixing the impact block gear shaft, which improves stability. A first positioning cylinder is provided on one side of the fixed base. When the impact block is placed in the fixed base, the output end of the first positioning cylinder extends and engages in the positioning hole of the impact block, thereby positioning the impact block and ensuring assembly accuracy.

[0006] The tooth feeding and pin loading device is provided in several parts, including a bracket, a pusher table, a tooth feeding mechanism, and a pin feeding and pushing mechanism. The bottom of the bracket is fixed to the operating table, and the top is fixedly provided with a pusher table. The pusher table is provided with a first pusher groove and a second pusher groove. One end of the first pusher groove is perpendicularly connected to the front section of the second pusher groove, and the front end of the second pusher groove is aligned with one of the gear inlets located in the gear cavity in the fixed seat.

[0007] The pusher platform is fixedly equipped with a gear feeding mechanism near the fixed base, including a gear cylinder mounting base, a gear cylinder, a gear feeding plate, a gear feeding cylinder, and a first sensor. The gear cylinder mounting base is fixed on the pusher platform, and its center has a first through hole communicating with the first pusher groove. A gear cylinder is installed in the first through hole for stacking multiple gears. The gear feeding plate is slidably disposed in the first pusher groove at the lower end of the gear cylinder mounting base. The gear feeding cylinder is fixedly disposed below the pusher platform, and its output end is fixedly connected to the gear feeding plate. In its initial state, the gear feeding cylinder is in the suction state, and the gear feeding plate extends outward. The first sensor is installed on the lower side of the gear cylinder mounting base, and its sensing end passes through the gear cylinder mounting base and is aligned with the first through hole. By setting up the gear feeding mechanism, when the first sensor senses that a gear is falling, it sends a signal, the gear feeding cylinder releases air, and the gear feeding plate retracts inward, thereby pushing the gear that has fallen in the first pusher groove into the second pusher groove.

[0008] A pin-feeding and pushing mechanism is fixedly installed in the middle of the pusher platform, including a pin mounting seat, a pin cylinder, a pin-feeding and pushing rod, a pushing cylinder, and a second sensor. The pin mounting seat is fixed on the side of the pusher platform near the fixed seat and close to the gear cylinder mounting seat. It has a second through hole in its center that communicates with the second pushing groove. The pin cylinder is installed in the second through hole for guiding the pin. The pin-feeding and pushing rod is slidably disposed in the second pushing groove at the lower end of the pin mounting seat. The pushing cylinder is fixedly disposed below the pusher platform, and its output end is fixedly connected to the pin-feeding and pushing rod. In its initial state, the pushing cylinder is in the suction state, and the pin-feeding and pushing rod extends outward. The second sensor is installed on the lower side of the pin mounting seat, and its sensing end passes through the pin mounting seat and is aligned with the second through hole. By setting up the pin-feeding and pushing mechanism, when the second sensor senses the pin falling, it sends a signal, the pushing cylinder releases air, and the pin-feeding and pushing rod retracts inward, thereby pushing the pin and the gear sent by the pushing mechanism onto the impact block in the fixed seat simultaneously.

[0009] Specifically, the pin-feeding pusher has two layers near the front end of the fixed seat. The upper layer has a protrusion with a pin placement hole. The pin placement hole can only hold one pin and has a brush to prevent the pin from slipping. The lower layer of the front end of the pin-feeding pusher has an arc-shaped recess. The size of the arc-shaped recess matches the gear, and the straight-line distance from the edge of the arc-shaped recess to the center of the pin placement hole is equal to the radius of the gear. The height of the arc-shaped recess is the same as the height of the gear cavity. By setting the pin-feeding pusher to two staggered layers, the upper layer is used to transport the pin and the lower layer is used to push the gear. When the pin-feeding pusher pushes, on the one hand, through the rapid push of the pusher cylinder, the pin-feeding pusher can use inertia to quickly push the pin and gear onto the fixed seat simultaneously. The gear directly enters the gear cavity through the gear inlet, greatly improving efficiency. On the other hand, the pin in the pin placement hole is exactly above the pin hole in the gear cavity, so that the pin can enter the center of the gear very accurately.

[0010] The tooth feeding and pin loading device is provided in several units, all of which have the same structure and will not be described in detail here. Several tooth feeding and pin loading devices work simultaneously, pushing multiple gears and pins onto the impact block in the fixed seat at high speed and high efficiency.

[0011] The pin-pressing device includes two support columns. The lower end of each support column is fixed to the operating table, and the top end is fixedly connected to a first mounting plate. A second positioning cylinder is fixedly connected to the first mounting plate. The output end of the second positioning cylinder is fixedly connected to a pressure plate facing downwards. One end of the pressure plate movably passes through the support columns. A spring is sleeved on the support column portion located under the pressure plate. The other end of the pressure plate, away from the support columns, is fixedly connected to an assembly positioning shaft and a gear cavity positioning shaft. By setting the assembly positioning shaft and the gear cavity positioning shaft, when the gear and pin shaft are pushed into place, the output of the second positioning cylinder pushes the pressure plate down, compressing the spring. The assembly positioning shaft is inserted into the gear shaft of the impact block located on the fixed seat, and the gear cavity positioning shaft is inserted into the positioning hole of the gear cavity, thereby positioning the impact block for accurate pin pressing. After pin pressing is completed, the spring rebounds, and the second positioning cylinder retracts to push the pressure plate up to reset.

[0012] The pressure plate is also provided with a second mounting plate, which is fixedly connected to the pin pressing cylinder. The output end of the pin pressing cylinder is fixedly connected to a pin pressing column downwards. Several pin pressing needles are fixedly connected to the lower end of the pin pressing column. The number and positional relationship of the pin pressing needles are consistent with the pin shaft on the impact block, and they can move through the pressure plate. By setting the pin pressing needles, the pin pressing cylinder is activated to push the pin pressing needles to quickly press the pin shaft in the pin feeding push rod into the gear pin shaft hole.

[0013] The pin feeding device is connected to the pin cylinder through several flexible hoses. The pins are fed by vibration, which is existing technology and will not be described in detail here.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model uses several tooth feeding and pin loading devices to work simultaneously, pushing multiple gears and pins onto the impact block in the fixed seat in one go. It has a high degree of automation, high speed, high efficiency, greatly reduces labor costs, and avoids the occurrence of safety accidents.

[0016] 2. This utility model sets the pin-feeding pusher rod in two staggered layers. The upper layer has a protrusion for transporting the pin, and the lower layer has an arc-shaped recess for pushing the gear. The straight-line distance from the edge of the arc-shaped recess to the center of the pin placement hole is equal to the radius of the gear, and the height of the arc-shaped recess is consistent with the height of the gear cavity. In this way, when the pin-feeding pusher rod pushes, on the one hand, through the rapid push of the pusher cylinder, the pin-feeding pusher rod can use inertia to quickly push the pin and gear synchronously onto the fixed seat. The gear directly enters the gear cavity through the gear inlet, which greatly improves efficiency. On the other hand, it makes the pin in the pin placement hole just above the pin hole in the gear cavity, so that the pin can enter the center of the gear very accurately.

[0017] 3. This utility model, by setting an assembly positioning shaft and a gear cavity positioning shaft, inserts the assembly positioning shaft into the impact block gear shaft located on the fixed seat, and inserts the gear cavity positioning shaft into the gear cavity positioning hole to position the impact block, which greatly improves the pin pressing accuracy and increases the pin pressing qualification rate.

[0018] 4. This utility model, by setting a pressing pin column, with several pressing pin needles fixedly connected to the lower end of the pressing pin column, quickly and accurately presses the pin shaft in the feeding pin pusher rod into the gear pin shaft hole. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the workpiece according to this utility model;

[0020] Figure 2 This is a top view of the workpiece structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the main structure of the present utility model;

[0023] Figure 5 This is a schematic diagram of the fixing base structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the tooth-feeding and pin-loading device of this utility model.

[0025] Figure 7This is a schematic diagram of the first and second pusher grooves of the pusher platform of this utility model;

[0026] Figure 8 This is a schematic diagram of the push pin structure of this utility model;

[0027] Figure 9 This is a schematic diagram of the pressing pin device of this utility model.

[0028] In the diagram: Cabinet 1, Operating console 2, Fixed base 3, Seat hole 31, First positioning cylinder 32, Tooth feeding and pin mounting device 4, Bracket 41, Pushing platform 42, First pushing groove 421, Second pushing groove 422, Tooth feeding mechanism 43, Gear cylinder mounting base 431, Gear cylinder 432, Tooth feeding plate 433, Tooth feeding cylinder 434, First sensor 435, Tooth feeding and pin pushing mechanism 44, Pin mounting base 441, Pin cylinder 442, Tooth feeding and pin pushing rod 4 43, protrusion 4431, pin placement hole 4432, arc-shaped recess 4433, push-pull cylinder 444, second sensor 445, pin pressing device 5, support column 51, first mounting plate 52, second positioning cylinder 53, pressure plate 54, spring 55, assembly positioning shaft 56, gear cavity positioning shaft 57, second mounting plate 58, pin pressing cylinder 59, pin pressing column 591, pin pressing needle 592, pin feeding device 6, control device 7. Detailed Implementation

[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figures 1-4 A tooth feeding and pin pressing machine includes a cabinet 1, an operating table 2 in the middle of the cabinet 1, a fixed seat 3 fixedly mounted on the operating table 2, a plurality of tooth feeding and pin loading devices 4 around the fixed seat 3, a pin pressing device 5 above the fixed seat 3, a pin feeding device 6 on one side of the operating table 2, and a control device 7 on the upper part of the cabinet 1.

[0031] See Figure 5 The fixed base 3 has a seat hole 31 in the center for fixing the impact block gear shaft, which improves stability. The fixed base 3 has a first positioning cylinder 32 on one side. When the impact block is placed into the fixed base 3, the output end of the first positioning cylinder 32 extends and is inserted into the positioning hole of the impact block, thereby positioning the impact block and ensuring assembly accuracy.

[0032] See Figures 6-7The tooth feeding and pin loading device 4 is provided in several parts, including a bracket 41, a pusher table 42, a tooth feeding mechanism 43, and a pin feeding and pushing mechanism 44. The bottom of the bracket 41 is fixed to the operating table 2, and the top is fixedly provided with the pusher table 42. The pusher table 42 is provided with a first pusher groove 421 and a second pusher groove 422. One end of the first pusher groove 421 is perpendicularly connected to the front section of the second pusher groove 422, and the front end of the second pusher groove 422 is aligned with one of the gear inlets in the gear cavity of the fixed base 3.

[0033] The pusher platform 42 is fixedly mounted with a gear feeding mechanism 43 near the fixed base 3. This mechanism includes a gear cylinder mounting base 431, a gear cylinder 432, a gear feeding plate 433, a gear feeding cylinder 434, and a first sensor 435. The gear cylinder mounting base 431 is fixed to the pusher platform 42 and has a first through hole at its center communicating with the first push groove 421. The gear cylinder 432 is installed in the first through hole for stacking multiple gears. The gear feeding plate 433 is slidably disposed in the first push groove 421 at the lower end of the gear cylinder mounting base 431. The gear feeding cylinder 434 is fixedly disposed in… Below the pusher platform 42, its output end is fixedly connected to the tooth feeding plate 433. In its initial state, the tooth feeding cylinder 434 is in the suction state, and the tooth feeding plate 433 extends outward. The first sensor 435 is installed on one side of the lower part of the gear cylinder mounting base 431. Its sensing end passes through the gear cylinder mounting base 431 and is aligned with the first through hole. By setting the tooth feeding mechanism 43, when the first sensor 435 senses the gear falling, it sends a signal, the tooth feeding cylinder 434 releases air, and the tooth feeding plate 433 retracts inward, thereby pushing the gear that falls in the first pusher groove 421 into the second pusher groove 422.

[0034] The pusher platform 42 is fixedly equipped with a pin feeding and pushing mechanism 44, which includes a pin mounting base 441, a pin cylinder 442, a pin feeding and pushing rod 443, a pushing cylinder 444, and a second sensor 445. The pin mounting base 441 is fixed on the side of the pusher platform 42 near the fixed base 3 and close to the gear cylinder mounting base 431. It has a second through hole at its center that communicates with the second pushing groove 422. The pin cylinder 442 is installed in the second through hole for guiding the pin. The pin feeding and pushing rod 443 is slidably disposed in the second pushing groove 422 at the lower end of the pin mounting base 441. The pushing cylinder 444 is fixedly disposed. Below the pusher platform 42, its output end is fixedly connected to the pin feeding pusher rod 443. In its initial state, the pusher cylinder 444 is in the suction state, and the pin feeding pusher rod 443 extends outward. The second sensor 445 is installed on one side of the lower part of the pin mounting base 441. Its sensing end passes through the pin mounting base 441 and is aligned with the second through hole. By setting the pin feeding pusher mechanism 44, when the second sensor 445 senses the pin falling, it sends a signal, the pusher cylinder 444 releases air, and the pin feeding pusher rod 443 retracts inward, thereby pushing the pin and the gear sent by the feeding mechanism 43 together onto the impact block in the fixed base 3.

[0035] Specifically, see Figure 8 The pin-feeding pusher 443 has two layers near the front end of the fixed base 3. The upper layer has a protrusion 4431, which has a pin placement hole 4432. The pin placement hole 4432 can only hold one pin, and a brush is provided in the pin placement hole 4432 to prevent the pin from slipping out. The lower layer of the front end of the pin-feeding pusher 443 has an arc-shaped recess 4433. The size of the arc-shaped recess 4433 matches the gear, and the straight-line distance from the edge of the arc-shaped recess 4433 to the center of the pin placement hole 4432 is equal to the radius of the gear. The height of the pin delivery push rod 443 is consistent with the height of the gear cavity. By setting the pin delivery push rod 443 into two staggered layers, the upper layer is used to transport the pin and the lower layer is used to push the gear. When the pin delivery push rod 443 pushes, on the one hand, through the rapid push of the push cylinder 444, the pin delivery push rod 443 can use inertia to quickly push the pin and the gear onto the fixed seat 3 synchronously. The gear directly enters the gear cavity through the gear inlet, which greatly improves efficiency. On the other hand, it makes the pin in the pin placement hole 4432 just above the pin hole in the gear cavity, so that the pin can enter the center of the gear very accurately.

[0036] Several tooth feeding and pin loading devices 4 are provided, and their structures are identical, so they will not be described in detail. Several tooth feeding and pin loading devices 4 work simultaneously to push multiple gears and pins onto the impact block in the fixed seat 3 at high speed and high efficiency.

[0037] See Figure 9 The pin-pressing device 5 includes two support columns 51. The lower end of the support column 51 is fixed to the operating table 2, and the top end is fixedly connected to a first mounting plate 52. A second positioning cylinder 53 is fixedly connected to the first mounting plate 52. The output end of the second positioning cylinder 53 is fixedly connected to a pressure plate 54 facing downward. One end of the pressure plate 54 movably passes through the support column 51. A spring 55 is sleeved on the support column 51 located below the pressure plate 54. The other end of the pressure plate 54 away from the support column 51 is fixedly connected to an assembly positioning shaft 56 and a gear cavity positioning shaft 57. By setting the assembly positioning shaft 56 and the gear cavity positioning shaft 57, when the gear and pin are pushed into place, the output of the second positioning cylinder 53 pushes the pressure plate 54 down, compresses the spring 55, inserts the assembly positioning shaft 56 into the impact block gear shaft located on the fixed seat 3, and inserts the gear cavity positioning shaft 57 into the gear cavity positioning hole, thereby positioning the impact block for accurate pin pressing. After the pin pressing is completed, the spring 55 rebounds, and the second positioning cylinder 53 retracts to push the pressure plate 54 up to reset.

[0038] The pressure plate 54 is also provided with a second mounting plate 58, which is fixedly connected to a pin-pressing cylinder 59. The output end of the pin-pressing cylinder 59 is fixedly connected to a pin-pressing column 591. The lower end of the pin-pressing column 591 is fixedly connected to several pin-pressing needles 592. The number and positional relationship of the pin-pressing needles 592 are consistent with the pin shaft on the impact block, and they can move through the pressure plate 54. By setting the pin-pressing needles 592, the pin-pressing cylinder 59 is activated to push the pin-pressing needles 592 to quickly press the pin shaft in the pin-feeding push rod 443 into the gear pin shaft hole.

[0039] The pin feeding device 6 is connected to the pin cylinder 442 through several pipes. The pin is fed by vibration, which is existing technology and will not be described in detail here.

[0040] The assembly principle of this utility model is as follows: First, the pin is manually placed into the pin feeding device 6. The pin is conveyed to the pin cylinder 442 by vibration. The gear is installed into the gear cylinder 432. The impact block is placed into the fixed seat 3. The output end of the first positioning cylinder 32 extends out and is inserted into the positioning hole of the impact block to position the impact block.

[0041] Next, when the first sensor 435 senses the gear falling, it sends a signal, the gear feeding cylinder 434 releases air, and the gear feeding plate 433 retracts inward, thereby pushing the gear that has fallen in the first push groove 421 into the second push groove 422; then, the pin feeding and tooth pushing: when the second sensor 445 senses the pin falling into the pin placement hole 4432, it sends a signal, the push cylinder 444 releases air to push the pin feeding and tooth pushing rod 443, the pin feeding and tooth pushing rod 443 quickly pushes the pin and gear synchronously onto the fixed seat 3, wherein the gear located in the lower arc-shaped recess 4433 is pushed into the gear cavity through the gear inlet, and the pin located in the upper pin placement hole 4432 is pushed above the pin hole, and then the output end of the first positioning cylinder 32 retracts; this step is implemented. Several tooth-feeding and pin-loading devices 4 work simultaneously, pushing multiple gears and pins onto the impact block in the fixed seat 3 in one go; then, the pins are pressed: the second positioning cylinder 53 outputs to push the pressure plate 54 down, the spring 55 is compressed, the assembly positioning shaft 56 is inserted into the gear shaft of the impact block located on the fixed seat 3, the gear cavity positioning shaft 57 is inserted into the gear cavity positioning hole, the pin-pressing cylinder 59 is activated to push the pin-pressing needle 592 to quickly press the pin in the tooth-feeding push rod 443 into the gear pin hole, the pin pressing is completed, the spring 55 rebounds, the second positioning cylinder 53 retracts to push the pressure plate 54 up to reset, the push cylinder 444 draws air to push the tooth-feeding push rod 443 to reset; finally, the parts are removed: the assembled impact block is manually removed and a new impact block is reinstalled, and this cycle is repeated.

Claims

1. A tooth feeding and pin pressing machine, comprising a cabinet (1), characterized in that: An operating table (2) is provided in the middle of the cabinet (1). A fixed seat (3) is fixedly provided on the operating table (2). Several tooth feeding pin devices (4) are provided around the fixed seat (3). A pin pressing device (5) is provided above the fixed seat (3). A pin feeding device (6) is provided on one side of the operating table (2). A control device (7) is provided on the upper part of the cabinet (1). The fixed seat (3) has a seat hole (31) in the center for fixing the impact block gear shaft, and a first positioning cylinder (32) is provided on one side of the fixed seat (3); The tooth feeding and pin loading device (4) is provided in several parts, including a bracket (41), a pusher (42), a tooth feeding mechanism (43), and a pin feeding and tooth pushing mechanism (44). The bottom of the bracket (41) is fixed to the operating table (2), and the top is fixedly provided with a pusher (42). The pusher (42) is provided with a first pusher groove (421) and a second pusher groove (422). One end of the first pusher groove (421) is perpendicularly connected to the front section of the second pusher groove (422), and the front end of the second pusher groove (422) is aligned with one of the gear inlets in the gear cavity located in the fixed seat (3). The pusher platform (42) is fixedly equipped with a gear feeding mechanism (43) on the side near the fixed base (3), including a gear cylinder mounting base (431), a gear cylinder (432), a gear feeding plate (433), a gear feeding cylinder (434), and a first sensor (435). The gear cylinder mounting base (431) is fixed on the pusher platform (42), and its center is provided with a first through hole communicating with the first pusher groove (421). The gear cylinder (432) is installed in the first through hole for stacking multiple gears. The gear feeding plate (435) is also provided with a first through hole communicating with the first pusher groove (421). 433) The first pusher groove (421) is slidably disposed in the lower end of the gear cylinder mounting base (431). The tooth feeding cylinder (434) is fixedly disposed below the pusher table (42), and its output end is fixedly connected to the tooth feeding plate (433). In its initial state, the tooth feeding cylinder (434) is in the suction state, and the tooth feeding plate (433) extends outward. The first sensor (435) is installed on one side of the lower part of the gear cylinder mounting base (431), and its sensing end passes through the gear cylinder mounting base (431) and is aligned with the first through hole.

2. The tooth feeding and pressing pin machine according to claim 1, characterized in that: The pusher platform (42) is fixedly equipped with a pin feeding and pushing mechanism (44) in the middle, including a pin mounting seat (441), a pin cylinder (442), a pin feeding and pushing rod (443), a pushing cylinder (444), and a second sensor (445). The pin mounting seat (441) is fixed on the side of the pusher platform (42) near the fixed seat (3) and close to the gear cylinder mounting seat (431). It has a second through hole in its center that communicates with the second pushing groove (422). The pin cylinder (442) is installed in the second through hole for guiding the pin. The pin feeding pusher (443) is slidably disposed in the second push groove (422) at the lower end of the pin mounting base (441). The push cylinder (444) is fixedly disposed below the push platform (42), and its output end is fixedly connected to the pin feeding pusher (443). In its initial state, the push cylinder (444) is in the suction state, and the pin feeding pusher (443) extends outward. The second sensor (445) is installed on one side of the lower part of the pin mounting base (441), and its sensing end passes through the pin mounting base (441) and is aligned with the second through hole.

3. The tooth feeding and pressing pin machine according to claim 2, characterized in that: The front end of the push pin rod (443) near the fixed base (3) is provided with two layers, upper and lower. The upper layer is provided with a protrusion (4431), and the protrusion (4431) is provided with a pin placement hole (4432). The pin placement hole (4432) can only hold one pin, and a brush is provided in the pin placement hole (4432). The lower front end of the push pin rod (443) is provided with an arc-shaped recess (4433). The size of the arc-shaped recess (4433) matches the gear, and the straight distance from the edge of the arc-shaped recess (4433) to the center of the pin placement hole (4432) is equal to the radius of the gear. The height of the arc-shaped recess (4433) is consistent with the height of the gear cavity.

4. The tooth feeding and pin pressing machine according to claim 1, characterized in that: The pressing pin device (5) includes a support column (51), which has two supports. The lower end of the support column (51) is fixed to the operating table (2), and the top end of the support column (51) is fixedly connected to a first mounting plate (52). A second positioning cylinder (53) is fixedly connected to the first mounting plate (52). The output end of the second positioning cylinder (53) is fixedly connected to a pressure plate (54) facing downward. One end of the pressure plate (54) movably passes through the support column (51). A spring (55) is sleeved on the support column (51) below the pressure plate (54). The other end of the pressure plate (54) away from the support column (51) is fixedly connected to an assembly positioning shaft (56) and a gear cavity positioning shaft (57).

5. The tooth feeding and pressing pin machine according to claim 4, characterized in that: The pressure plate (54) is also provided with a second mounting plate (58), which is fixedly connected to a pin-pressing cylinder (59). The output end of the pin-pressing cylinder (59) is fixedly connected to a pin-pressing column (591) downwards. The lower end of the pin-pressing column (591) is fixedly connected to several pin-pressing needles (592). The number and positional relationship of the pin-pressing needles (592) are consistent with the pin shaft on the impact block, and they can move through the pressure plate (54).

6. The tooth feeding and pressing pin machine according to claim 2, characterized in that: The pin feeding device (6) is connected to the pin cylinder (442) through several flexible hoses.

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