Pressing pin device of product pressing machine

Abstract

A pin pressing device of a product pressing machine comprises a main supporting seat, a pin pressing mechanism arranged on the upper portion of the main supporting seat and a clamp mechanism arranged on the lower portion of the main supporting seat. The main supporting seat comprises an upper supporting plate, and a central hole is formed in the upper supporting plate; the pin pressing mechanism comprises a driving oil cylinder, an oil cylinder shaft lifting sensing assembly, a pin pressing assembly and a pin displacement sensing assembly; the pressing pin assembly comprises a pressing column, a pressure sensor and a butt joint sleeve. The pressure sensor is mounted in the butt joint sleeve; the upper end of the butt-joint sleeve is sleeved with an output shaft of the driving oil cylinder through a connecting piece, and the lower end of the butt-joint sleeve is sleeved with the upper end of the pressing column through a connecting piece, so that the output shaft of the driving oil cylinder, the pressure sensor and the pressing column are sequentially connected. According to the pin pressing device, the press fitting pressure value is monitored and output through the pressure sensor, the lifting displacement of the output shaft of the driving oil cylinder is sensed through the oil cylinder shaft lifting sensing assembly, the press fitting height of the hollow pin is sensed through the pin displacement sensing assembly, it is guaranteed that the press fitting work is adjustable and controllable, and then the product percent of pass is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of press-fitting equipment, in particular to a pin pressing device for a product press-fitting machine. Background Technique

[0002] In the production and manufacturing process of a gear chamber, it is necessary to press a two-stage mating hollow pin into the product processing surface through the pin pressing device of a press-fitting machine. The hollow pin and the product processing surface are in a two-stage fit, where the first-stage fit is a sliding fit (positive clearance fit), and the hollow pin can be inserted into the corresponding first-stage pin hole on the product manually; the second-stage fit is an interference fit (negative clearance), and it is necessary to use a pin pressing device to press the hollow pin into the second-stage pin hole. During the process of pressing the hollow pin using the pin pressing device of the existing press-fitting machine, the following defects still exist:

[0003] 1. The pin pressing device of the existing press-fitting machine does not have a pressure value output function. During press-fitting, if there are dust foreign matters in the product pin hole or the hollow pin, or the hollow pin is deformed, the press-fitting force will become larger or smaller, resulting in no alarm prompt even when the pressure value exceeds the range set in the process card, so there is a risk of poor press-fitting for the product.

[0004] 2. The pin pressing device of the existing press-fitting machine does not have a hollow pin height detection function after press-fitting. The height of the hollow pin after press-fitting can only be detected manually for the second time, which wastes labor costs and has low press-fitting efficiency.

[0005] 3. The pin pressing device of the existing press-fitting machine does not have a cylinder stroke detection function, and it is impossible to ensure that the pressure output is within a predetermined range.

[0006] 4. The pin pressing device of the existing press-fitting machine does not have a product in-place detection function. If there are foreign matters at the bottom of the product and it is not installed in place, there is a risk of poor press-fitting. Content of the Utility Model

[0007] In view of the deficiencies of the prior art, the utility model provides a pin pressing device for a product press-fitting machine to overcome the deficiencies in the prior art.

[0008] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0009] A pin pressing device for a product press-fitting machine includes a main support seat, a pin pressing mechanism arranged on the upper part of the main support seat, and a fixture mechanism arranged on the lower part of the main support seat.

[0010] The main support seat includes an upper support plate, and the upper support plate is provided with a central opening;

[0011] The pin pressing mechanism includes a driving oil cylinder and a pin pressing assembly;

[0012] The driving oil cylinder is installed on the upper support plate, and the output shaft of the driving oil cylinder passes through the central opening of the upper support plate;

[0013] The pin pressing assembly includes a pressing column, a pressure sensor, and a docking sleeve; the pressure sensor is installed inside the docking sleeve; the upper end of the docking sleeve is sleeved on the output shaft of the driving oil cylinder through a connecting member, and the lower end of the docking sleeve is sleeved on the upper end of the pressing column through a connecting member, so that the output shaft of the driving oil cylinder, the pressure sensor, and the pressing column are connected in sequence;

[0014] The fixture mechanism includes a fixture bottom plate, and the product to be processed is placed on the fixture bottom plate.

[0015] Further, the pin pressing mechanism further includes an oil cylinder shaft lifting induction assembly; the oil cylinder shaft lifting induction assembly is installed and fixed on the first induction seat, the first induction seat is fixed inside the main support seat, and the first induction seat is provided with a central opening for the output shaft of the driving oil cylinder to pass through; the oil cylinder shaft lifting induction assembly includes a high-position induction end and a low-position induction end that are arranged at intervals up and down on the first induction seat.

[0016] Further, the pin pressing mechanism further includes a pin displacement induction assembly; the pin displacement induction assembly includes a pin displacement sensor, the pin displacement sensor is fixedly installed at the lower end of the pressing column, and the induction end of the pin displacement sensor is aligned with the hollow pin on the product.

[0017] Further, the pin pressing assembly further includes a guide sleeve, the guide sleeve is fixedly installed in the central opening of the first induction seat, and the lower end of the pressing column is sleeved inside the guide sleeve.

[0018] Preferably, a round pin positioning assembly, a square pin positioning assembly, and a press-fitting support seat are arranged on the fixture bottom plate; the press-fitting support seat is arranged at the center of the fixture bottom plate, the round pin positioning assembly and the square pin positioning assembly are arranged on both sides of the press-fitting support seat, and the alignment holes at the bottom of the product to be processed are respectively aligned with the round pin positioning assembly, the press-fitting support seat, and the square pin positioning assembly.

[0019] Preferably, a rough positioning assembly is further arranged on the fixture bottom plate; the rough positioning assembly includes a plurality of rough positioning blocks, the rough positioning blocks are distributed around the product to be processed, and a guiding inclined surface is arranged at the top of each rough positioning block.

[0020] Preferably, a product in-place induction is further arranged on the fixture bottom plate, and the product in-place induction is arranged on the right side of the product to be processed.

[0021] Preferably, a pin in-place induction is further arranged on the fixture bottom plate, and the pin in-place induction is arranged at the rear side of the product to be processed.

[0022] Further, the main support seat further includes a lower support plate and a support column, and the support column is connected between the upper support plate and the lower support plate.

[0023] Preferably, the pressure sensor is fixedly installed inside the docking sleeve through a second induction seat.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0025] 1) The pin pressing device of a product press-fitting machine in this case monitors and outputs the press-fitting pressure value through a pressure sensor, and has an alarm prompt function when it exceeds the range set in the process card; the lifting displacement of the output shaft of the driving oil cylinder is sensed through the oil cylinder shaft lifting induction component to ensure the stable output pressure of the driving oil cylinder; the press-fitting height of the hollow pin is sensed through the pin displacement induction component. When the height of the hollow pin is detected within the set range after press-fitting, it prompts OK, and when it exceeds the set range, it prompts NG and gives an alarm prompt to ensure that the hollow pin is press-fitted in place; thus, the press-fitting work can be adjusted and controlled, effectively ensuring the product qualification rate.

[0026] 2) The pin pressing device of a product press-fitting machine in this case prevents the product and the hollow pin from being interfered by foreign objects and not being in place by setting product in-place induction and pin in-place induction on the fixture bottom plate, and prevents the risk of poor press-fitting caused by the product not being placed properly.

[0027] In order to understand the present utility model more clearly, the preferred embodiments of the present utility model will be described below in conjunction with the accompanying drawings. Description of the Drawings

[0028] Figure 1 is a reference diagram of the usage state of the present utility model;

[0029] Figure 2 is a structural schematic diagram of the main support seat in the present utility model;

[0030] Figure 3 is a structural schematic diagram of the pin pressing mechanism in the present utility model;

[0031] Figure 4 is a structural schematic diagram of the pin pressing assembly in the present utility model;

[0032] Figure 5 is a structural schematic diagram of the fixture mechanism in the present utility model.

[0033] Reference Signs in the Drawings:

[0034] 1 - Main support seat, 11 - Upper support plate, 12 - Lower support plate, 13 - Support column; 21 - Driving oil cylinder, 221 - First induction seat, 222 - High position induction end, 223 - Low position induction end; 231 - Pressing column, 232 - Pressure sensor, 233 - Docking sleeve, 234 - Guide sleeve; 241 - Pin displacement sensor; 31 - Fixture bottom plate, 32 - Round pin positioning assembly, 33 - Square pin positioning assembly, 34 - Press-fitting support seat, 35 - Coarse positioning assembly, 36 - Product in-place induction, 37 - Pin in-place induction; 100 - Product, 101 - Hollow pin. Detailed Embodiments

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] In addition, terms such as "first" and "second" are only used for descriptive purposes, mainly to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and should not be construed as indicating or implying relative importance.

[0037] In addition, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements; for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] Please refer to Figures 1-5 , the present utility model provides a pin pressing device for a product press, including a main support seat 1, a pin pressing mechanism arranged on the upper part of the main support seat 1, and a fixture mechanism arranged on the lower part of the main support seat 1; a product to be processed 100 is placed on the fixture mechanism, and a hollow pin 101 is pre-placed on the processing surface of the product 100, and the pin pressing mechanism presses the hollow pin 101 onto the product 100 to complete the pressing work.

[0039] The main support seat 1 includes an upper support plate 11 and a lower support plate 12 arranged at intervals, and a support column 13 connected between the upper support plate 11 and the lower support plate 12. The upper support plate 11 is provided with a central opening for the output shaft of the driving oil cylinder to pass through.

[0040] The pin pressing mechanism includes a driving oil cylinder 21, an oil cylinder shaft lifting induction component, a pin pressing component, and a pin displacement induction component;

[0041] The driving oil cylinder 21 is installed on the upper support plate 11, and the output shaft of the driving oil cylinder 21 passes through the central opening of the upper support plate 11;

[0042] The oil cylinder shaft lifting induction component is installed and fixed on the first induction seat 221 and is located below the driving oil cylinder 21. The first induction seat 221 is fixed inside the main support seat 1. The first induction seat 221 is provided with a central opening for the output shaft of the driving oil cylinder 21 to pass through. The oil cylinder shaft lifting induction component includes a high-position induction end 222 and a low-position induction end 223 that are arranged at intervals up and down on the first induction seat 221. The stroke of the output shaft of the driving oil cylinder 21 is sensed and monitored by the high-position induction end 222 and the low-position induction end 223, so as to ensure the quantitative lifting of the output shaft of the driving oil cylinder 21, and further ensure the stable output pressure of the driving oil cylinder 21.

[0043] The pin pressing component includes a pressing column 231, a pressure sensor 232, a docking sleeve 233 and a guide sleeve 234. The pressure sensor 232 is fixedly arranged in the docking sleeve 233 through a second induction seat. The upper end of the docking sleeve 233 is sleeved on the output shaft of the driving oil cylinder 21 through a connecting piece, and the lower end of the docking sleeve 233 is sleeved on the upper end of the pressing column 231 through a connecting piece, so that the output shaft of the driving oil cylinder 21, the pressure sensor 232 and the pressing column 231 are connected in sequence. The lower end of the pressing column 231 is sleeved in the guide sleeve 234, and the guide sleeve 234 is fixedly installed in the central opening of the first induction seat 221. The guide sleeve 234 ensures the straight up and down reciprocating movement of the output shaft of the driving oil cylinder 21.

[0044] The pin displacement induction component includes a pin displacement sensor 241. The pin displacement sensor 241 is fixedly installed on the outer wall of the lower end of the pressing column 231 through a third induction seat. The induction end of the pin displacement sensor 241 is aligned with the hollow pin 101 on the product 100. Through the pin displacement sensor 241, the height at which the hollow pin 101 is press-fitted into the product 100 can be sensed, so as to ensure that the hollow pin 101 is press-fitted in place.

[0045] The fixture mechanism includes a fixture bottom plate 31 and a round pin positioning component 32, a square pin positioning component 33, a press-fitting support seat 34, a rough positioning component 35, a product in-place induction 36 and a pin in-place induction 37 arranged on the fixture bottom plate 31.

[0046] The press-fitting support seat 34 is arranged in the center of the fixture bottom plate 31. The round pin positioning component 32 and the square pin positioning component 33 are arranged on both sides of the press-fitting support seat 34. The alignment holes at the bottom of the product 100 to be processed are respectively aligned with the round pin positioning component 32, the press-fitting support seat 34 and the square pin positioning component 33.

[0047] The rough positioning component 35 includes a number of rough positioning blocks. The rough positioning blocks are distributed around the product 100 to be processed. A guiding inclined surface is provided at the top of each rough positioning block to facilitate the product 100 to be positioned and placed on the fixture bottom plate 31 under the action of the guiding inclined surface.

[0048] The product in-place sensor 36 is arranged on the right side of the product to be processed 100, and is used to sense whether the product to be processed 100 is placed on the fixture bottom plate 31; the pin in-place sensor 37 is arranged on the rear side of the product to be processed 100, and is used to sense whether the hollow pin 101 is placed on the product to be processed 100.

[0049] A pin pressing device of a product press-fitting machine in this case, its working principle or working process in the actual working condition is as follows:

[0050] 1. The product to be processed 100 is placed on the fixture bottom plate 31 through the rough positioning component 35, the hollow pin 101 is inserted into the corresponding pin hole on the product 100, and the product in-place sensor 36 and the pin in-place sensor 37 respectively monitor that the product 100 and the hollow pin 101 are placed in place.

[0051] 2. The driving oil cylinder 21 starts to actuate, the output shaft of the driving oil cylinder 21 drives the pressure column 231 to descend, and the pressure column 231 gradually presses the hollow pin 101 into the processing surface of the product 100. During this process, the pressure sensor 232 located between the output shaft of the driving oil cylinder 21 and the pressure column 231 senses the pressure value of pressing the hollow pin 101 and outputs this pressure value to an external alarm device, and if the pressure value exceeds the standard, an alarm is given; at the same time, during the press-fitting process, the oil cylinder shaft lifting induction component senses and monitors the lifting stroke of the output shaft of the driving oil cylinder 21 to ensure the stable output pressure of the driving oil cylinder 21; the pin displacement sensor 241 senses the height of the hollow pin 101 pressed into the product 100, thereby judging that the hollow pin 101 is pressed in place.

[0052] Compared with the prior art, the pin pressing device of a product press-fitting machine in this case monitors and outputs the press-fitting pressure value through a pressure sensor, and has an alarm prompt function when it exceeds the range set by the process card; senses the lifting displacement of the output shaft of the driving oil cylinder through the oil cylinder shaft lifting induction component to ensure the stable output pressure of the driving oil cylinder; senses the press-fitting height of the hollow pin through the pin displacement induction component, and when the height of the hollow pin is detected within the set range after press-fitting, it prompts OK, and when it exceeds the set range, it prompts NG and gives an alarm prompt to ensure that the hollow pin is pressed in place; thus ensuring that the press-fitting work is adjustable and controllable, and effectively ensuring the product qualification rate.

[0053] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A pin pressing device for a product press, comprising a main support base (1), a pin pressing mechanism arranged on the upper part of the main support base (1), and a fixture mechanism arranged on the lower part of the main support base (1), characterized in that: The main support base (1) includes an upper support plate (11), and the upper support plate (11) is provided with a central opening; The pin pressing mechanism includes a driving oil cylinder (21) and a pin pressing assembly; The driving oil cylinder (21) is installed on the upper support plate (11), and the output shaft of the driving oil cylinder (21) passes through the central opening of the upper support plate (11); The pin pressing assembly includes a pressing column (231), a pressure sensor (232), and a docking sleeve (233); the pressure sensor (232) is installed in the docking sleeve (233); the upper end of the docking sleeve (233) is sleeved with the output shaft of the driving oil cylinder (21) through a connecting piece, and the lower end of the docking sleeve (233) is sleeved with the upper end of the pressing column (231) through a connecting piece, so that the output shaft of the driving oil cylinder (21), the pressure sensor (232), and the pressing column (231) are connected in sequence; The fixture mechanism includes a fixture bottom plate (31), and a product (100) to be processed is placed on the fixture bottom plate (31).

2. The pin pressing device of a product press according to claim 1, characterized in that: The pin pressing mechanism further includes an oil cylinder shaft lifting induction assembly; the oil cylinder shaft lifting induction assembly is installed and fixed on a first induction seat (221), the first induction seat (221) is fixed on the inner side of the main support base (1), and the first induction seat (221) is provided with a central opening for the output shaft of the driving oil cylinder (21) to pass through; the oil cylinder shaft lifting induction assembly includes a high - level induction end (222) and a low - level induction end (223) arranged at intervals up and down on the first induction seat (221).

3. The pin pressing device of a product press according to claim 2, characterized in that: The pin pressing mechanism further includes a pin displacement induction assembly; the pin displacement induction assembly includes a pin displacement sensor (241), the pin displacement sensor (241) is fixedly installed at the lower end of the pressing column (231), and the induction end of the pin displacement sensor (241) is aligned with the hollow pin (101) on the product (100).

4. The pin pressing device of a product press according to claim 3, characterized in that: The pin pressing assembly further includes a guide sleeve (234), the guide sleeve (234) is fixedly installed in the central opening of the first induction seat (221), and the lower end of the pressing column (231) is sleeved in the guide sleeve (234).

5. The pin pressing device of a product press according to claim 1, characterized in that: The fixture bottom plate (31) is provided with a round pin positioning assembly (32), a square pin positioning assembly (33), and a press - fitting support base (34); the press - fitting support base (34) is arranged at the center of the fixture bottom plate (31), the round pin positioning assembly (32) and the square pin positioning assembly (33) are arranged on both sides of the press - fitting support base (34), and the alignment holes at the bottom of the product (100) to be processed are respectively aligned with the round pin positioning assembly (32), the press - fitting support base (34), and the square pin positioning assembly (33).

6. The pin pressing device of a product press according to claim 5, characterized in that: The fixture bottom plate (31) is further provided with a rough positioning assembly (35); the rough positioning assembly (35) includes a number of rough positioning blocks, the rough positioning blocks are distributed around the product (100) to be processed, and each rough positioning block is provided with a guiding inclined surface at the top.

7. The pin pressing device of a product press according to claim 5, characterized in that: The fixture bottom plate (31) is further provided with a product in - place sensor (36), and the product in - place sensor (36) is arranged on the right side of the product (100) to be processed.

8. The pin pressing device of a product press according to claim 5, characterized in that: A pin-in-place sensor (37) is further provided on the fixture base plate (31), and the pin-in-place sensor (37) is disposed at the rear side of the product (100) to be machined.

9. The pin pressing device of a product press according to claim 1, characterized in that: The main support seat (1) further includes a lower support plate (12) and a support column (13), and the support column (13) is connected between the upper support plate (11) and the lower support plate (12).

10. The pin pressing device of a product press as claimed in claim 1, characterized in that: The pressure sensor (232) is fixedly installed in the docking sleeve (233) through a second sensor seat.

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