Processing method of a horizontal steel ball grinding machine with an auxiliary positioning function

Abstract

A processing method for a horizontal steel ball grinding machine with an auxiliary positioning function, including a horizontally arranged main shaft and a left grinding disc and a right grinding disc which are coaxially arranged and both vertical. The right grinding disc is fixedly arranged on the tailstock body. The right end of the main shaft is fixedly connected to the left grinding disc and is coaxially arranged with it. The main shaft is rotatably installed on the headstock body and reciprocates along its axial direction; the left grinding disc moves synchronously with the main shaft. A displacement sensor for monitoring the stroke of the left grinding disc is fixedly installed on the headstock body. A positioning device is fixedly installed on the tailstock body. The positioning device is used to abut its positioning rod against the left grinding disc and apply a leftward thrust to the left grinding disc; the positioning device on the tail support and its positioning rod can position the left grinding disc and apply a thrust when the left grinding disc approaches the right grinding disc, assisting the grinding disc to be accurately aligned; the displacement sensor can monitor the stroke of the left grinding disc. Acting together with the positioning device, it enables the operator to better master the position and operating state of the left grinding disc, improving the consistency and production efficiency of steel ball grinding.

Description

Technical Field

[0001] The present invention relates to the technical field of automation and intelligence of steel ball equipment, and particularly relates to a processing method for a horizontal steel ball grinding machine with an auxiliary positioning function. Background Art

[0002] Most horizontal steel ball grinding machines use hydraulic drive for pressurization. Due to its characteristics of stable transmission, large load-bearing capacity, and convenient operation, it has been widely used in steel ball equipment. When processing steel balls, at the beginning, the pressure between the two disks needs to be small and the spindle speed needs to be slow to let the steel balls go along the grooves. After the grooves are finished, the large pressure and high speed are adjusted for grinding. When the steel balls are processed to the required size, the two tooling disks need to be separated so that workers can unload the steel balls between the two disks. When starting to process the next batch of steel balls of the same specification, the first step needs to be repeated, which is troublesome, time-consuming, and error-prone. When using a displacement sensor for auxiliary positioning, since the oil is prone to heat up, the viscosity of the oil will increase the internal leakage of the oil pump, and there is frictional loss in the movement of the piston sleeve and various components, so it cannot be guaranteed that the displacement sensor for electrical control can make the spindle stop at the working position of the previous processing cycle every time (the error exceeds 1 mm). This makes it necessary for workers to perform cumbersome corrections on the position of the grinding disk during each cycle of grinding and processing steel balls with a horizontal steel ball grinding machine to ensure the consistency of steel ball products, thus making it difficult to improve production efficiency and product quality. Summary of the Invention

[0003] Aiming at the problems in the prior art, the present invention provides a processing method for a horizontal steel ball grinding machine with an auxiliary positioning function, aiming to enable the spindle position to be reset with one key when processing steel balls of the same specification, reduce the cumbersome correction process, and improve the processing accuracy and efficiency of steel balls.

[0004] A processing method for a horizontal steel ball grinding machine with an auxiliary positioning function includes a horizontally arranged spindle, and a left grinding disk and a right grinding disk that are coaxially arranged and both vertical. The right grinding disk is fixedly arranged on the tailstock body. The right end of the spindle is fixedly connected to the left grinding disk and is coaxially arranged with it. The spindle is rotatably installed on the headstock body and reciprocates along its axis; the left grinding disk moves synchronously with the spindle. A displacement sensor for monitoring the stroke of the left grinding disk is fixedly installed on the headstock body, and a positioning device is fixedly installed on the tailstock body. The positioning device is used to abut its positioning rod against the left grinding disk and apply a leftward thrust to the left grinding disk. The processing method for the horizontal steel ball grinding machine includes the following steps:

[0005] Step 1: Move the left grinding disk close to the right grinding disk to form a grinding groove between the two;

[0006] Step 2: Load the steel balls to be processed into the grinding groove and let the steel balls to be processed go along the groove;

[0007] Step 3: After completing the groove following, press and grind the steel balls to be processed with the left grinding disc;

[0008] Step 4: After the grinding is completed, make the positioning rod abut against the left grinding disc and apply a set pressure A to the left grinding disc to the left; then, record the displacement value B of the left grinding disc at this time through the displacement sensor;

[0009] Step 5: Keep the positioning rod stationary, move the left grinding disc to the left for discharging, and execute Step 6 after the discharging is completed;

[0010] Step 6: Move the left grinding disc to the right and make the dynamic value of the displacement sensor equal to the displacement value B; at this time, if the left grinding disc abuts against the positioning rod and the acting force between them is greater than or equal to the pressure A, reset the positioning rod and execute Step 2; otherwise, execute Step 7;

[0011] Step 7: Move the left grinding disc to the right and abut it against the positioning rod and make the acting force between them equal to the pressure A, then, reset the positioning rod and execute Step 2.

[0012] Further: The value range of the pressure A is 5 KN to 15 KN.

[0013] Further: The main shaft is driven by a hydraulic driving mechanism, the positioning device is a servo electric cylinder, the positioning rod is the telescopic rod of the servo electric cylinder, a pressure sensor is arranged at the end of the telescopic rod, and the measurement of the pressure sensor is displayed through a display.

[0014] Further: The positioning rod indirectly abuts against the left grinding disc through a baffle, and the baffle is connected to the left grinding disc and moves synchronously with it along the axial direction of the left grinding disc.

[0015] Further: The hydraulic driving mechanism, the displacement sensor, the servo electric cylinder, the pressure sensor and the display are all connected to the controller, and the display is a touch display screen.

[0016] Further: In Step 7, the left grinding disc is moved to the right automatically or manually through the controller.

[0017] Further: The displacement sensor is a pull-rod type capacitive displacement sensor, the body of the displacement sensor is fixedly connected to the headstock body, and the pull-rod end of the displacement sensor is indirectly connected to the left grinding disc and moves synchronously with it.

[0018] Further: The headstock body and the tailstock body are both fixedly connected to the top surface of the same base plate.

[0019] Advantages of the present invention: A positioning device is installed on the tailstock to apply pressure to the left grinding disc for auxiliary positioning. The displacement sensor cooperates to record the displacement value of the left grinding disc and guide the movement, ensuring that the spacing of the grinding channels processed each time is accurate and stable. Moreover, each processing can ensure that it is carried out under the same accurate conditions through positioning and displacement detection, enabling rapid positioning of the left grinding disc, allowing the operator to operate according to a simple and systematic process, reducing the operation difficulty and complexity, and reducing the influence brought by human factors, thereby improving the precision and consistency of steel ball processing and enhancing the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a flowchart of the present invention;

[0021] Figure 2 is a schematic structural diagram of the present invention;

[0022] Figure 3 is a partial structural schematic diagram at the displacement sensor of the present invention;

[0023] Figure 4 is a schematic diagram of the state of grinding the first batch of steel balls of the present invention;

[0024] Figure 5 is a schematic diagram of the state of positioning the left grinding disc by the positioning device of the present invention;

[0025] Figure 6 is a schematic diagram of the state of discharging the left grinding disc in the present invention;

[0026] Figure 7 is a schematic diagram of the state of grinding the next batch of steel balls in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will describe the present invention in detail with reference to the drawings. The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention. The orientation terms such as left, middle, right, up, and down in the embodiments of the present invention are only relative concepts to each other or are referenced based on the normal use state of the product, and should not be considered restrictive.

[0028] A processing method for a horizontal steel ball grinding machine with an auxiliary positioning function, as Figure 2 and Figure 3As shown in the figure, it includes a horizontally arranged main shaft 7, a left grinding disc 61 and a right grinding disc 62 which are coaxially arranged and both vertically oriented. There is a groove for grinding steel balls between the left grinding disc 61 and the right grinding disc 62. The right grinding disc 62 is fixedly arranged on the tailstock body 3. The right end of the main shaft 7 is fixedly connected to the left grinding disc 61 and is coaxially arranged with it. The main shaft 7 is rotatably installed on the headstock body 2 and reciprocates along its axial direction; the left grinding disc 61 moves synchronously with the main shaft 7. A displacement sensor 9 for detecting the stroke of the left grinding disc 61 is fixedly installed on the headstock body 2. A positioning device 51 is fixedly installed on the tailstock body 3. The positioning device 51 is used to abut its positioning rod 511 against the left grinding disc 61 and apply a leftward thrust to the left grinding disc 61. Since the left grinding disc 61 is installed on the headstock body 2 and the right grinding disc 62 is installed on the tailstock body 3, to avoid the influence of the headstock body 2 and the tailstock body 3 on the processing gap between the left grinding disc 61 and the right grinding disc 62, and further affect the consistency of the processed steel balls, both the headstock body 2 and the tailstock body 3 are fixedly connected to the top surface of the same base plate 1; combined with Figure 1 and Figures 4 to 7 As shown in the figure, the processing method of the horizontal steel ball grinding machine includes the following steps:

[0029] Step 1: Move the left grinding disc 61 close to the right grinding disc 62 and form a grinding groove between the two;

[0030] Step 2: Load the steel balls to be processed into the grinding groove and make the steel balls to be processed go along the groove;

[0031] Step 3: After the groove alignment is completed, make the left grinding disc 61 apply pressure to and grind the steel balls to be processed;

[0032] Step 4: After the grinding is completed, make the positioning rod 511 abut against the left grinding disc 61 and apply a set pressure A to the left grinding disc 61 to the left. Because the hydraulic pressure has creep, jogging pressurization cannot ensure that 1KN pressurization can be achieved every time. Therefore, the value range of the pressure A is 5KN~15KN. If the pressure is too small, it is not convenient to jog to the set value. If the pressure is too large, it is unnecessary. This pressure value is used to ensure that the current position of the left grinding disc movement is the same as the previous position under the positioning action of the positioning rod; then, the displacement value B of the left grinding disc 61 at this time is recorded by the displacement sensor 9;

[0033] Step 5: Keep the positioning rod 511 stationary, move the left grinding disc 61 to the left for discharging, and perform Step 6 after the discharging is completed;

[0034] Step 6: Move the left grinding disc 61 to the right and make the dynamic value of the displacement sensor 9 equal to the displacement value B; at this time, if the left grinding disc 61 abuts against the positioning rod 511 and the force between them is greater than or equal to the pressure A, this force is the pressure between them, reset the positioning rod 511 and execute Step 2; if the left grinding disc 61 does not abut against the positioning rod 511 or abuts against the positioning rod 511 and the force between them is less than the pressure A, execute Step 7;

[0035] Step 7: The left grinding disc 61 can be automatically or manually moved to the right by the controller to abut against the positioning rod 511 and make the force between them equal to the pressure A, and then, reset the positioning rod and execute Step 2.

[0036] Among them, since the main shaft 7 uses hydraulic movement and pressurization, after the hydraulic drive mechanism drives the main shaft 7 to move back and forth, because the hydraulic oil is prone to heat, the viscosity of the hydraulic oil will increase the internal leakage of the oil pump, and each component will generate moving friction loss, and it cannot be guaranteed that the displacement sensor 9 of the electrical control can make the main shaft 7 stop at the position of the previous work every time (the error exceeds 1 mm), thus increasing the operation difficulty, reducing the consistency and efficiency of processing steel balls, and being unfavorable to the development of the automation and intelligence of steel ball equipment; for this reason, the main shaft 7 is driven by a hydraulic drive mechanism, the positioning device 51 is a high-precision servo electric cylinder, the positioning rod 511 is the telescopic rod of the servo electric cylinder, a pressure sensor is provided at the end of the telescopic rod, and the measurement of the pressure sensor is displayed through a display, and the thrust of the telescopic rod of the servo electric cylinder is greater than or equal to 15 KN. For the convenience of control, the hydraulic drive mechanism, the displacement sensor, the servo electric cylinder, the pressure sensor and the display are all connected to the controller, and the display is a touch screen display; the movement and rotation of the main shaft 7 can be controlled through the touch screen display, as well as the telescopic amount and thrust of the telescopic rod in the servo electric cylinder, and the values of the displacement sensor and the pressure sensor can also be displayed through the touch screen display.

[0037] In addition, to facilitate the abutment of the positioning rod 511 against the left grinding disc 61, the positioning rod 511 indirectly abuts against the left grinding disc 61 through the baffle 52. The baffle 52 is connected to the left grinding disc 61 and moves synchronously with it along the axial direction of the left grinding disc 61. The hydraulic drive mechanism includes a piston sleeve 81. The piston sleeve 81 is sleeved on the main shaft 7 and is rotationally matched with it. Both ends of the piston sleeve 81 are connected to the main shaft 7 through roller bearings 521. The piston sleeve 81 is sleeved in the headstock body 2 and is slidably matched with the headstock body 2 along the axial direction of the main shaft 7. A piston chamber is formed between the outer wall of the piston sleeve 81 and the headstock body 2. A piston 83 is fixedly sleeved in the middle of the piston sleeve 81. The piston 83 is located in the piston chamber and divides the piston chamber into a left chamber 82 and a right chamber 84. Hydraulic oil pipes 85 are provided at the positions of the headstock body 2 corresponding to the left chamber 82 and the right chamber 84. The left chamber 82 and the right chamber 84 are respectively communicated with the corresponding hydraulic oil pipes 85. Hydraulic oil is injected into the left chamber 82 or the right chamber 84 through the hydraulic oil pipes 85, so as to push the piston 83 to move left and right in the piston chamber, and then drive the piston sleeve 81 and the main shaft 7 to move left and right synchronously through the piston 83. The baffle 52 is fixedly connected to the piston sleeve 81. The displacement sensor 9 is a pull-rod type capacitive displacement sensor. The body of the displacement sensor 9 is fixedly connected to the headstock body 2. The pull-rod end of the displacement sensor 9 is indirectly connected to the left grinding disc 61 through the piston sleeve 81 and moves synchronously with it. Specifically, the pull-rod end of the displacement sensor 9 is fixedly connected to the piston sleeve 81. To realize the rotation of the main shaft, the left end of the main shaft 7 passes through the headstock body 2. A fixed sleeve 21 is fixedly installed at the position of the headstock body 2 corresponding to the left end of the main shaft 7. The fixed sleeve 21 is sleeved on the main shaft 7 and there is a clearance for the piston sleeve 81 to pass through between them. A pulley 4 is rotatably installed on the fixed sleeve 21. A spline sleeve 41 is fixedly connected to the left end face of the pulley 4. The left end of the main shaft is a spline shaft. The spline sleeve 41 is sleeved on the spline shaft and is slidably matched and rotates synchronously with it. The main shaft 7 is driven to rotate through the pulley 4 via the spline sleeve 41.

[0038] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing method for a horizontal steel ball grinding machine with an auxiliary positioning function, comprising a horizontally arranged main shaft and a left grinding disc and a right grinding disc which are coaxially arranged and both vertical, the right grinding disc is fixedly arranged on a tail frame body, the right end of the main shaft is fixedly connected to the left grinding disc and is coaxially arranged therewith, the main shaft is rotatably mounted on a head frame body and is reciprocated along its axial direction; the left grinding disc moves synchronously with the main shaft, and a displacement sensor for monitoring the travel of the left grinding disc is fixedly installed on the head frame body, characterized in that: A positioning device is fixedly installed on the tailstock body, and the positioning device is used to abut its positioning rod against the left grinding disc and apply a leftward thrust to the left grinding disc. The horizontal steel ball grinding machine processing method includes the following steps: Step 1: Move the left grinding disc close to the right grinding disc to form a grinding channel between them; Step 2: Load the steel ball to be processed into the grinding groove and make the steel ball to be processed follow the groove; Step 3: After the groove is completed, the left grinding disc is used to pressurize and grind the steel ball to be processed; Step 4: After the grinding is completed, the positioning rod is brought into contact with the left grinding disc and a set pressure A is applied to the left grinding disc; then, the displacement value B of the left grinding disc at this time is recorded by the displacement sensor; Step 5: Keep the positioning rod stationary, move the left grinding disc to the left and unload, and perform step 6 after unloading; Step 6: Move the left grinding disc to the right, and make the dynamic value of the displacement sensor equal to the displacement value B; at this time, if the left grinding disc abuts against the positioning rod and the force between the two is greater than or equal to pressure A, reset the positioning rod and execute step 2; if the left grinding disc does not abut against the positioning rod or abuts against the positioning rod and the force between the two is less than pressure A, execute step 7; Step 7: Move the left grinding disc to the right and make it rest against the positioning rod so that the force between the two is equal to the pressure A. Then, reset the positioning rod and perform step 2.

2. The processing method of a horizontal steel ball grinding machine with auxiliary positioning function according to claim 1, characterized in that: The value range of pressure A is 5KN~15KN.

3. The horizontal steel ball grinding machine processing method with auxiliary positioning function according to claim 1 is characterized in that for: The main shaft is driven by a hydraulic drive mechanism, the positioning device is a servo electric cylinder, the positioning rod is a telescopic rod of the servo electric cylinder, a pressure sensor is arranged on the end of the telescopic rod, and the measurement of the pressure sensor is displayed through a display.

4. The processing method of a horizontal steel ball grinding machine with auxiliary positioning function according to claim 3 is characterized in that: The positioning rod is indirectly abutted against the left grinding disc through a baffle plate, and the baffle plate is connected to the left grinding disc and moves synchronously with the left grinding disc along the axial direction of the left grinding disc.

5. The processing method of a horizontal steel ball grinding machine with auxiliary positioning function according to claim 3, characterized in that: The hydraulic drive mechanism, displacement sensor, servo electric cylinder, pressure sensor and display are all connected to the controller, and the display is a touch screen.

6. The processing method of a horizontal steel ball grinding machine with auxiliary positioning function according to claim 5, characterized in that: In step 7, the left grinding disc is moved to the right automatically or manually through the controller.

7. The processing method of a horizontal steel ball grinding machine with auxiliary positioning function according to claim 1, characterized in that: The displacement sensor is a pull rod type capacitive displacement sensor, the body of the displacement sensor is fixedly connected to the head frame, and the end of the pull rod of the displacement sensor is indirectly connected to the left grinding disc and moves synchronously with it.

8. The processing method of a horizontal steel ball grinding machine with auxiliary positioning function according to claim 1, characterized in that: The head frame body and the tail frame body are both fixedly connected to the top surface of the same base plate.

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