Processing method of cashier desk panel

Abstract

The invention discloses a cashier desk panel machining method which is used for machining a workpiece, the workpiece is provided with four side surfaces, a top surface and a bottom surface which are sequentially connected, and the cashier desk panel machining method comprises the following steps that the workpiece is horizontally installed on a first clamping assembly, a first machining surface of the workpiece is milled through a cutter, and a first semi-finished product is obtained; the first semi-finished product piece obtained in the second step is moved and horizontally installed on a second clamping assembly, a second machining face on the first semi-finished product piece is milled through a cutter to obtain a second semi-finished product piece, and the second semi-finished product piece obtained in the fourth step is moved and vertically installed on a third clamping assembly to obtain a third semi-finished product piece; and the third machining face on the second semi-finished product is milled through the cutter, and a finished product is obtained. According to the invention, the precise positioning of the workpiece is realized, the condition of deviation or local shaking of the workpiece is avoided, the machining precision and quality are improved, and the adverse effect of machining holes and grooves newly formed in the workpiece on clamping is effectively avoided.

Description

Technical Field

[0001] The invention relates to a method for processing a cash register panel, and belongs to the field of metal product processing. Background Art

[0002] A cashier counter is a workbench that can provide customers with some services and cashier services for goods for sale. It is an indispensable facility in shopping malls, stores, supermarkets and other places, and is also called a payment counter. The panel of the cashier counter needs to be processed with holes and grooves on multiple surfaces to obtain the final product.

[0003] In the prior art, vacuum adsorption or clamping is generally used to position the workpiece to be processed, so as to facilitate the subsequent milling process by the tool. However, the vacuum adsorption force is usually relatively small, and when the workpiece needs to be processed through a through hole, it is easy for the adsorption force to drop suddenly due to local sealing failure, which in turn causes the workpiece to shake, vibrate, or even shift under the action of the tool, affecting the processing accuracy and quality; while the use of clamping can easily cause uneven force on the workpiece, especially since the area to be processed is generally far away from the clamping area. Therefore, during the tool processing process, it is easy for the tool to shake and vibrate, resulting in knife marks, affecting the processing quality. Summary of the invention

[0004] The purpose of the present invention is to provide a method for processing a cash register panel, which can not only achieve precise positioning of the workpiece, but also avoid the deviation or local jitter of the workpiece, thereby improving the processing accuracy and quality, and effectively avoiding the adverse effects of newly generated processing holes and grooves on the workpiece on clamping.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a method for processing a cash register panel, which is used for processing a workpiece, wherein the workpiece has four sequentially connected side surfaces, a top surface and a bottom surface, wherein the top surface of the workpiece is a first processing surface, the bottom surface is a second processing surface, and a side surface is a third processing surface, comprising the following steps: Step 1: horizontally mount the workpiece on the first clamping assembly with the first processing surface facing upward; Step 2: milling the first machining surface of the workpiece by a tool to obtain a first semi-finished product; Step 3, moving the first semi-finished product obtained in step 2 and horizontally installing it on the second clamping assembly, with the second processed surface facing upward; Step 4: milling the second machined surface on the first semi-finished part by a tool to obtain a second semi-finished part; Step 5: Move the second semi-finished product obtained in step 4 and vertically install it on the third clamping assembly, with the third processed surface facing upward; Step six: milling the third processing surface on the second semi-finished product with a tool to obtain a finished product.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above scheme, the first clamping assembly and the second clamping assembly both include: a horizontally arranged substrate and an adsorption plate installed above the substrate, a first cavity is arranged between the sealed connected substrate and the adsorption plate, a plurality of adsorption grooves are arranged on the upper surface of the adsorption plate in contact with the bottom surface or the top surface of the workpiece, the mutually connected adsorption grooves are connected to the first cavity through pipelines, and a first air hole connected to the first cavity is arranged on the lower surface of the substrate.

[0007] 2. In the above solution, the first air hole is connected to a vacuum generator or a vacuum pump through a pipeline.

[0008] 3. In the above scheme, at least one limit block is provided on the outer sides of the two adjacent sides of the adsorption plate on the upper surface of the base plate of the first clamping assembly, and at least one movable push block corresponding to the limit block is provided on the outer sides of the other two sides of the adsorption plate. The end of the movable push block opposite to the limit block is connected to the piston rod of a first cylinder. When the piston rod of the first cylinder is in an extended state, the four side surfaces of the workpiece placed on the upper surface of the adsorption plate of the first clamping assembly are respectively squeezed and contacted with the limit blocks or movable push blocks on its outer sides.

[0009] 4. In the above scheme, the bottom of one side surface of the workpiece has a strip-shaped protrusion extending along its length direction, and the upper surface of the strip-shaped protrusion is an inclined surface inclined downward in the direction away from the workpiece, and the movable push block that cooperates with the side surface of the workpiece with the strip-shaped protrusion is provided with an inclined push surface consistent with the inclination direction of the inclined surface, and the inclined push surface is formed at the corner between the end surface of the movable push block close to one end of the workpiece and its lower surface, and is located above the upper inclined surface of the strip-shaped protrusion.

[0010] 5. In the above scheme, at least one second cylinder is installed on the lower surface of the base plate of the second clamping assembly and on the outer sides of the two opposite sides of the adsorption plate. The piston rod of the second cylinder passes upward through the base plate and is hingedly connected to one end of a pressure block. A support seat is installed on the base plate and between the adsorption plate and the second cylinder. The other end of the connecting rod, one end of which is hingedly connected to the support seat, is hingedly connected to the middle part of the pressure block. The other end of the pressure block is used to press and contact the second processing surface of the workpiece placed on the upper surface of the adsorption plate of the second clamping assembly.

[0011] 6. In the above scheme, the lower surface of the substrate of the second clamping assembly is sealed with a bottom sealing plate directly below the adsorption plate, and an air-uniform cavity is provided between the bottom sealing plate and the substrate. The air-uniform cavity is connected to the first cavity through at least three first air holes opened on the substrate.

[0012] 7. In the above scheme, the second semi-finished product has a machined through hole, and machined grooves are formed around the machined through hole and on the second machined surface. The third clamping assembly further includes: a second base plate, a support plate vertically installed on the second base plate, and a main board sealed to one side of the support plate, a second cavity is formed between the main board and the support plate, and the main board has a plurality of adsorption areas on the surface opposite to the support plate, the plurality of adsorption areas are arranged around the machined groove and each adsorption area is provided with a plurality of gas grooves that are interconnected and connected to the second cavity.

[0013] 8. In the above scheme, the support plate is opposite to the main board and is equipped with at least one third cylinder on both sides of the main board. The piston rod of the third cylinder passes through the support plate and is hingedly connected to a strip pressure plate. A fixed seat installed between the main board and the third cylinder is hingedly connected to the middle part of the strip pressure plate through a rotating rod. When the piston rod of the third cylinder is in an extended state, the other end of the strip pressure plate connected to the piston rod of the third cylinder at one end is in extrusion contact with the second semi-finished product.

[0014] 9. In the above scheme, a sealing plate is sealed and connected to the surface of the support plate opposite to the main board, a third cavity is arranged between the sealing plate and the support plate, at least three second air holes connecting the third cavity with the second cavity are opened on the support plate, and the third cavity is connected to the vacuum pump or the vacuum generator through a pipeline.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The processing method of the cash register panel of the present invention realizes convenient processing of three processing surfaces by sequentially arranging three clamping components, and each clamping component clamps and positions the workpiece by a combination of vacuum adsorption and a movable push block or a pressure clamping claw, which can not only realize accurate positioning of the workpiece, but also avoid the deviation or local jitter of the workpiece during the milling process, thereby improving the processing accuracy and quality, and can also effectively avoid the adverse effects of newly generated processing holes and grooves on the workpiece on clamping between various processes.

[0016] 2. The processing method of the cash register counter panel of the present invention is characterized in that the bottom of one side surface of the workpiece has a strip-shaped protrusion extending along its length direction, and the upper surface of the strip-shaped protrusion is an inclined surface inclined downward in the direction away from the workpiece, and a movable push block cooperating with the side surface of the workpiece having the strip-shaped protrusion is provided with an inclined push surface consistent with the inclination direction of the inclined surface, and the inclined push surface is formed at the corner between the end surface of the movable push block close to one end of the workpiece and its lower surface, and is located above the upper inclined surface of the strip-shaped protrusion. While the push block applies a horizontal force to the workpiece, it applies a vertical downward force to the workpiece through the cooperation of its upper inclined push surface with the inclined surface on the strip-shaped protrusion of the workpiece, thereby ensuring that the workpiece is closely fitted to the adsorption plate while accurately positioning the workpiece, thereby improving the stability of the workpiece clamping.

[0017] 3. In the processing method of the cash register panel of the present invention, the lower surface of the substrate of the second clamping component is sealed with a bottom sealing plate located directly below the adsorption plate, and an air uniformity cavity is provided between the bottom sealing plate and the substrate. The air uniformity cavity is connected to the first cavity through at least three first air holes opened on the substrate, so that the air flow can be evenly dispersed during the vacuuming process, which can not only realize the rapid adsorption of the workpiece by the adsorption plate, but also improve the uniformity of the force on the workpiece, thereby ensuring the stability of the workpiece during the processing, and thus improving the quality of the workpiece processing.

[0018] 4. The processing method of the cash register panel of the present invention comprises a processing through hole on the second semi-finished product, and processing grooves are formed around the processing through hole and on the second processing surface, and the third clamping assembly further comprises: a second bottom plate, a support plate vertically installed on the second bottom plate and a main board sealed and connected to one side of the support plate, a second cavity is formed between the main board and the support plate, and the main board has a plurality of adsorption areas on the surface opposite to the support plate, the plurality of adsorption areas are arranged around the processing groove and each adsorption area has a plurality of gas grooves connected to each other and to the second cavity, and by arranging the gas grooves matching the workpiece, the damage of the processing holes and grooves on the workpiece to the vacuum adsorption is avoided, and at the same time, the uniformity and stability of the adsorption force on each area of ​​the workpiece are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is a structural schematic diagram of the first clamping assembly of the cashier counter panel of the present invention; Attached Figure 2 For attachment Figure 1 The enlarged schematic diagram of point A in the middle; Attached Figure 3 A partial schematic diagram of the first clamping assembly of the processing method of the cash register panel of the present invention Figure 1 ; Attached Figure 4 A partial schematic diagram of the first clamping assembly of the processing method of the cash register panel of the present invention Figure 2 ; Attached Figure 5 For attachment Figure 4 Schematic diagram of the cross section along BB; Attached Figure 6 A schematic diagram of a first semi-finished product of a method for processing a cash register panel of the present invention; Attached Figure 7 It is a structural schematic diagram of the second clamping assembly of the processing method of the cash register panel of the present invention; Attached Figure 8 It is a partial schematic diagram of the second clamping assembly of the processing method of the cash register panel of the present invention; Attached Fig. 9 For attachment Figure 8 Schematic diagram of the cross section along the CC; Attached Fig.10 A schematic diagram of a second semi-finished product of the processing method of the cash register panel of the present invention; Attached Fig.11 The structure diagram of the third clamping assembly of the processing method of the cash register panel of the present invention is shown in FIG. Figure 1 ; Attached Fig.12 It is a partial schematic diagram of the third clamping assembly of the method for processing the cash register panel of the present invention; Attached Fig.13 For attachment Fig.12 Schematic diagram of the cross section along DD; Attached Fig.14 The structure diagram of the third clamping assembly of the processing method of the cash register panel of the present invention is shown in FIG. Figure 2 ; Attached Fig.15 A partial schematic diagram of the finished product of the processing method of the cash register panel of the present invention Figure 1 ; Attached Fig.16 A partial schematic diagram of the finished product of the processing method of the cash register panel of the present invention Figure 2 .

[0020] In the above figures: 100, workpiece; 101, first semi-finished product; 102, second semi-finished product; 103, finished product; 104, strip protrusion; 105, processed through hole; 106, processed groove; 107, positioning through hole; 200, first clamping assembly; 300, second clamping assembly; 400, third clamping assembly; 1, substrate; 2, adsorption plate; 3, first cavity; 4, adsorption groove; 5, first air hole; 6, first cylinder; 7, limit block; 8, movable push block; 81, inclined push surface; 9, second cylinder; 1 0. Pressing block; 11. Support seat; 12. Connecting rod; 13. Bottom sealing plate; 14. Air uniformity chamber; 15. Mounting plate; 16. Guide block; 161. Guide groove; 17. Rotating rod; 18. Sealing plate; 19. Third cavity; 20. Second air hole; 21. Second bottom plate; 22. Support plate; 23. Main plate; 24. Second cavity; 25. Adsorption area; 26. Gas groove; 27. Third cylinder; 28. Strip pressing plate; 29. ​​Fixed seat; 30. First bottom plate; 31. Support column; 32. Through hole; 33. Positioning pin. Implementation

[0021] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0022] Embodiment 1: A method for processing a cash register counter panel is used for processing a workpiece 100, wherein the workpiece 100 has four sequentially connected side surfaces, a top surface and a bottom surface, wherein the top surface of the workpiece 100 is a first processing surface, the bottom surface is a second processing surface, and a side surface is a third processing surface, comprising the following steps: Step 1: horizontally mount the workpiece 100 on the first clamping assembly 200 with the first processing surface facing upward; Step 2: milling the first machining surface of the workpiece 100 by a tool to obtain a first semi-finished product 101; Step 3: Move the first semi-finished product 101 obtained in step 2 and install it horizontally on the second clamping assembly 300, with the second processed surface facing upward; Step 4: milling the second machined surface on the first semi-finished product 101 by a tool to obtain a second semi-finished product 102; Step 5: Move the second semi-finished product 102 obtained in step 4 and vertically install it on the third clamping assembly 400, with the third processed surface facing upward; Step six: milling the third processing surface on the second semi-finished product 102 with a tool to obtain a finished product 103.

[0023] The above-mentioned first clamping assembly 200 and second clamping assembly 300 both include: a horizontally arranged substrate 1 and an adsorption plate 2 installed above the substrate 1, a first cavity 3 is arranged between the sealed connected substrate 1 and the adsorption plate 2, a plurality of adsorption grooves 4 are provided on the upper surface of the adsorption plate 2 in contact with the top surface of the workpiece 100, the mutually connected adsorption grooves 4 are connected to the first cavity 3 through pipelines, and a first air hole 5 connected to the first cavity 3 is provided on the lower surface of the substrate 1.

[0024] The first air hole 5 is connected to the vacuum generator through a pipeline.

[0025] At least one limit block 7 is disposed on the upper surface of the substrate 1 of the first clamping assembly 200 and located on the outer sides of the adjacent two sides of the adsorption plate 2. At least one movable push block 8 corresponding to the limit block 7 is disposed on the outer sides of the other two sides of the adsorption plate 2. The end of the movable push block 8 opposite to the limit block 7 is connected to the piston rod of a first cylinder 6. When the piston rod of the first cylinder 6 is in an extended state, the four side surfaces of the workpiece 100 placed on the upper surface of the adsorption plate 2 of the first clamping assembly 200 are respectively pressed and contacted with the limit blocks 7 on the outer sides thereof. Place the rectangular plate (workpiece) to be processed on the adsorption plate of the first clamping component, so that its first processing surface faces upward for easy processing and the other surface contacts the adsorption plate surface; then, the first cylinder drives the movable push block to push the workpiece forward until it contacts the limit blocks on the outside of its two adjacent sides. At this time, the workpiece reaches the precise position; then start the vacuum generator connected to the first cavity of the first clamping component, and further adsorb and position the workpiece moved to the precise position through the adsorption plate of the first clamping component; then, the first processing surface of the clamped workpiece is milled to obtain a first semi-finished product with holes and grooves.

[0026] The bottom of one side surface of the workpiece 100 is provided with a strip-shaped protrusion 104 extending along its length direction, and the upper surface of the strip-shaped protrusion 104 is a slope inclined downward in the direction away from the workpiece 100, and the movable push block 8 that cooperates with the side surface of the workpiece 100 having the strip-shaped protrusion 104 is provided with an inclined push surface 81 consistent with the inclination direction of the inclined surface, and the inclined push surface 81 is formed at the corner between the end surface of the movable push block 8 close to one end of the workpiece 100 and its lower surface, and is located above the upper inclined surface of the strip-shaped protrusion 104. While the push block applies a horizontal force to the workpiece, it applies a vertical downward force to the workpiece through the cooperation of its upper inclined push surface with the inclined surface on the strip-shaped protrusion of the workpiece, thereby ensuring that the workpiece is tightly fitted to the adsorption plate while accurately positioning the workpiece, thereby improving the stability of the workpiece clamping.

[0027] At least one second cylinder 9 is installed on the lower surface of the substrate 1 of the second clamping assembly 300 and on the outer sides of the two opposite sides of the adsorption plate 2. The piston rod of the second cylinder 9 passes through the substrate 1 upward and is hingedly connected to one end of a pressing block 10. A support seat 11 is installed on the substrate 1 and between the adsorption plate 2 and the second cylinder 9. The other end of the connecting rod 12 hingedly connected to the support seat 11 at one end is hingedly connected to the middle part of the pressing block 10. The other end of the pressing block 10 is used for pressing and contacting with the second processing surface of the workpiece 100 placed on the upper surface of the adsorption plate 2 of the second clamping assembly 300; The first semi-finished product is turned over and moved to the exact position on the adsorption plate of the second clamping assembly, so that its second processing surface faces upward for easy processing and the other surface is in contact with the adsorption plate surface; then, the vacuum generator connected to the uniform air chamber of the second clamping assembly is started, and the gas enters the cavity from the adsorption groove on the adsorption plate of the second clamping assembly, and then evenly enters the uniform air chamber and then enters the vacuum generator, thereby achieving uniform adsorption of the first semi-finished product; because the processing area of ​​the second processing surface is large and the processing operation is complicated, the force of the tool on the first semi-finished product is greater and lasts longer, therefore, the second processing surface is pressed by the second cylinder to drive the pressure block to ensure the accuracy and stability of the position of the first semi-finished product during the entire process of processing the second processing surface; then the second processing surface of the clamped first semi-finished product is milled to obtain a second semi-finished product with holes and grooves.

[0028] The lower surface of the substrate 1 of the above-mentioned second clamping assembly 300 is sealed with a bottom sealing plate 13 located directly below the adsorption plate 2, and an air uniforming cavity 14 is arranged between the bottom sealing plate 13 and the substrate 1. The air uniforming cavity 14 is connected to the first cavity 3 via at least three first air holes 5 opened on the substrate 1. The air flow can be evenly dispersed during the vacuuming process, which can not only realize the rapid adsorption of the workpiece by the adsorption plate, but also improve the uniformity of the force on the workpiece, thereby ensuring the stability of the workpiece during the processing, and thus improving the processing quality of the workpiece.

[0029] Embodiment 2: A processing method for processing a workpiece 100, wherein the workpiece 100 has four sequentially connected side surfaces, a top surface and a bottom surface, wherein the top surface of the workpiece 100 is a first processing surface, the bottom surface is a second processing surface, and a side surface is a third processing surface, comprising the following steps: Step 1: horizontally mount the workpiece 100 on the first clamping assembly 200 with the first processing surface facing upward; Step 2: milling the first machining surface of the workpiece 100 by a tool to obtain a first semi-finished product 101; Step 3: Move the first semi-finished product 101 obtained in step 2 and install it horizontally on the second clamping assembly 300, with the second processed surface facing upward; Step 4: milling the second machined surface on the first semi-finished product 101 by a tool to obtain a second semi-finished product 102; Step 5: Move the second semi-finished product 102 obtained in step 4 and vertically install it on the third clamping assembly 400, with the third processed surface facing upward; Step six: milling the third processing surface on the second semi-finished product 102 with a tool to obtain a finished product 103.

[0030] The above-mentioned first clamping assembly 200 and second clamping assembly 300 both include: a horizontally arranged substrate 1 and an adsorption plate 2 installed above the substrate 1, a first cavity 3 is arranged between the sealed connected substrate 1 and the adsorption plate 2, a plurality of adsorption grooves 4 are provided on the upper surface of the adsorption plate 2 in contact with the bottom surface of the workpiece 100, the mutually connected adsorption grooves 4 are connected to the first cavity 3 through pipelines, and a first air hole 5 connected to the first cavity 3 is provided on the lower surface of the substrate 1.

[0031] The first air hole 5 is connected to a vacuum pump through a pipeline.

[0032] At least one limit block 7 is arranged on the outer side of the two adjacent sides of the adsorption plate 2 on the upper surface of the substrate 1 of the above-mentioned first clamping assembly 200, and at least one movable push block 8 corresponding to the limit block 7 is arranged on the outer side of the other two sides of the adsorption plate 2. The end of the movable push block 8 opposite to the limit block 7 is connected to the piston rod of a first cylinder 6. When the piston rod of the first cylinder 6 is in an extended state, the four side surfaces of the workpiece 100 placed on the upper surface of the adsorption plate 2 of the first clamping assembly 200 are respectively squeezed and contacted with the movable push blocks 8 on its outer side.

[0033] The above-mentioned limit block 7 and movable push block 8 are both elastic blocks.

[0034] The above-mentioned limit block 7 and movable push block 8 are both made of rubber blocks.

[0035] Two limit blocks 7 are arranged at intervals outside one long side and one short side of the rectangular workpiece 100 .

[0036] The upper surface of the base plate 1 is provided with a plurality of guide blocks 16 corresponding to the movable push blocks 8 . Each movable push block 8 is correspondingly embedded in a guide groove 161 provided on the guide block 16 and slidably cooperates with the inner wall of the guide groove 161 .

[0037] The horizontally arranged first cylinder 6 is mounted on the base plate 1 through a mounting plate 15 . One end of the mounting plate 15 is connected to the lower surface of the base plate 1 , and the other end of the mounting plate 15 extends away from the base plate 1 and is mounted with the first cylinder 6 .

[0038] A first bottom plate 30 is disposed below the substrate 1 , and the first bottom plate 30 is connected to the substrate 1 via at least four supporting columns 31 .

[0039] The second semi-finished product 102 is provided with a machined through hole 105, and machined grooves 106 are formed around the machined through hole 105 and on the second machined surface. The third clamping assembly 400 further includes: a second base plate 21, a support plate 22 vertically mounted on the second base plate 21, and a main board 23 sealed and connected to one side of the support plate 22, a second cavity 24 is formed between the main board 23 and the support plate 22, and the main board 23 has a plurality of adsorption areas 25 on the surface opposite to the support plate 22, the plurality of adsorption areas 25 are arranged around the machined groove 106, and each adsorption area 25 is provided with a plurality of gas grooves 26 that are interconnected and connected to the second cavity 24. By arranging a gas groove that matches the workpiece, the damage of the machined holes and grooves on the workpiece to the vacuum adsorption is avoided, and at the same time, the uniformity and stability of the adsorption force on each area of ​​the workpiece are ensured.

[0040] The above-mentioned support plate 22 is opposite to the main board 23 and is provided with at least one third cylinder 27 on both sides of the main board 23. The piston rod of the third cylinder 27 passes through the support plate 22 and is hingedly connected to a strip pressure plate 28. A fixed seat 29 installed between the main board 23 and the third cylinder 27 is hingedly connected to the middle part of the strip pressure plate 28 through a rotating rod 17. When the piston rod of the third cylinder 27 is in an extended state, the other end of the strip pressure plate 28, one end of which is connected to the piston rod of the third cylinder 27, is in extrusion contact with the second semi-finished product 102.

[0041] A sealing plate 18 is sealed and connected to the surface of the support plate 22 on the side opposite to the main board 23. A third cavity 19 is provided between the sealing plate 18 and the main board 23. The main board 23 is provided with at least three second air holes 20 connecting the third cavity 19 and the second cavity 24. The third cavity 19 is connected to the vacuum generator through a pipeline. The second semi-finished product is rotated to a vertical state so that the third processing surface thereon faces upward, and the second processing surface of the second semi-finished product is fitted with the main board surface of the third clamping assembly; then, the vacuum generator connected to the third cavity of the third clamping assembly is started, and the gas enters the second cavity from the gas groove on the main board of the third clamping assembly, and then evenly enters the third cavity and then enters the vacuum generator, thereby achieving uniform adsorption of the second semi-finished product in the vertical state; because the tool will generate a force to move the second semi-finished product away from the main board when acting on the third processing surface, therefore, the strip pressure plate is driven by the third cylinder to press the first processing surface to ensure the accuracy and stability of the position of the second semi-finished product during the entire process of processing the third processing surface; then the third processing surface of the clamped second semi-finished product is milled to obtain a finished product with holes and grooves, and the finished product is a cash register panel.

[0042] A through hole 32 communicating with the gas-uniform cavity 14 is formed on the lower surface of the bottom sealing plate 13 , and the through hole 32 is connected to the vacuum generator through a pipeline.

[0043] Three positioning through holes 107 are arranged circumferentially outside the processing through hole 105 , and positioning pins 33 corresponding to the positioning through holes 107 are arranged on the main board 23 .

[0044] The working principle of the present invention is as follows: It is necessary to perform milling on three surfaces of the workpiece, specifically: machining through holes and grooves on the first machining surface, machining holes and grooves on the second machining surface, and machining grooves on the third machining surface; This patent realizes convenient processing of three processing surfaces by sequentially setting three clamping components, and each clamping component clamps and positions the workpiece by a combination of vacuum adsorption and a movable push block or a pressure clamping jaw, which can not only realize accurate positioning of the workpiece, but also avoid the deviation or local shaking of the workpiece during the milling process, improve the processing accuracy and quality, and effectively avoid the adverse effects of newly generated processing holes and grooves on the workpiece on the clamping between various processes; Specific: First, place the rectangular plate (workpiece) to be processed on the adsorption plate of the first clamping assembly, so that its first processing surface faces upward for easy processing, and the other surface contacts the adsorption plate surface; then, the first cylinder drives the movable push block to push the workpiece forward to contact the limit blocks outside its two adjacent sides, at this time, the workpiece reaches the precise position; then start the vacuum generator connected to the first cavity of the first clamping assembly, and further adsorb and position the workpiece moved to the precise position through the adsorption plate of the first clamping assembly; then, the first processing surface of the clamped workpiece is milled to obtain a first semi-finished product with holes and grooves; The first semi-finished product is turned over and moved to the accurate position on the adsorption plate of the second clamping assembly, so that its second processing surface faces upward for easy processing and the other surface contacts the adsorption plate surface; then, the vacuum generator connected to the uniform air chamber of the second clamping assembly is started, and the gas enters the cavity from the adsorption groove on the adsorption plate of the second clamping assembly, and then evenly enters the uniform air chamber and then enters the vacuum generator, thereby achieving uniform adsorption of the first semi-finished product; because the processing area of ​​the second processing surface is large and the processing operation is complex, the force of the tool on the first semi-finished product is greater and lasts longer, therefore, the second processing surface is pressed by the second cylinder to ensure the accuracy and stability of the position of the first semi-finished product during the entire process of processing the second processing surface; then, the second processing surface of the clamped first semi-finished product is milled to obtain a second semi-finished product with holes and grooves; The second semi-finished product is rotated to a vertical state so that the third processing surface thereon faces upward, and the second processing surface of the second semi-finished product is fitted with the main board surface of the third clamping assembly; then, the vacuum generator connected to the third cavity of the third clamping assembly is started, and the gas enters the second cavity from the gas groove on the main board of the third clamping assembly, and then evenly enters the third cavity and then enters the vacuum generator, thereby achieving uniform adsorption of the second semi-finished product in the vertical state; because the tool will generate a force to move the second semi-finished product away from the main board when acting on the third processing surface, therefore, the strip pressure plate is driven by the third cylinder to press the first processing surface to ensure the accuracy and stability of the position of the second semi-finished product during the entire process of processing the third processing surface; then the third processing surface of the clamped second semi-finished product is milled to obtain a finished product with holes and grooves, and the finished product is a cash register panel.

[0045] When the above-mentioned processing method of the cash register panel is adopted, the three processing surfaces can be conveniently processed by sequentially setting three clamping components, and each clamping component clamps and positions the workpiece by a combination of vacuum adsorption and a movable push block or a pressure clamping jaw, which can not only realize the precise positioning of the workpiece, but also avoid the deviation or local jitter of the workpiece during the milling process, thereby improving the processing accuracy and quality, and can also effectively avoid the adverse effects of newly generated processing holes and grooves on the workpiece on clamping between each process.

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for processing a cash register counter panel, used for processing a workpiece (100), wherein the workpiece (100) has four sequentially connected side surfaces, a top surface and a bottom surface, characterized in that: The top surface of the workpiece (100) is a first processing surface, the bottom surface is a second processing surface, and a side surface is a third processing surface, comprising the following steps: Step 1: horizontally mounting the workpiece (100) on the first clamping assembly (200) with the first processing surface facing upwards; Step 2: milling the first machining surface of the workpiece (100) using a tool to obtain a first semi-finished product (101); Step 3: Move the first semi-finished product (101) obtained in step 2 and install it horizontally on the second clamping assembly (300), with the second processed surface facing upwards; Step 4: milling the second machined surface on the first semi-finished product (101) using a tool to obtain a second semi-finished product (102); Step 5: Move the second semi-finished product (102) obtained in step 4 and vertically install it on the third clamping assembly (400), with the third processed surface facing upwards; Step six: milling the third processing surface on the second semi-finished product (102) using a tool to obtain a finished product (103).

2. The processing method of the cash register panel according to claim 1, characterized in that: The first clamping assembly (200) and the second clamping assembly (300) both comprise: a horizontally arranged substrate (1) and an adsorption plate (2) mounted above the substrate (1); a first cavity (3) is arranged between the sealed substrate (1) and the adsorption plate (2); a plurality of adsorption grooves (4) are provided on the upper surface of the adsorption plate (2) in contact with the bottom surface or the top surface of the workpiece (100); the adsorption grooves (4) are connected to each other and are connected to the first cavity (3) through pipelines; and a first air hole (5) connected to the first cavity (3) is provided on the lower surface of the substrate (1).

3. The processing method of the cash register panel according to claim 2, characterized in that: The first air hole (5) is connected to a vacuum generator or a vacuum pump via a pipeline.

4. The processing method of the cash register panel according to claim 2 or 3, characterized in that: At least one limit block (7) is disposed on the upper surface of the base plate (1) of the first clamping assembly (200) and on the outer sides of two adjacent sides of the adsorption plate (2); at least one movable push block (8) corresponding to the limit block (7) is disposed on the outer sides of the other two sides of the adsorption plate (2); one end of the movable push block (8) opposite to the limit block (7) is connected to the piston rod of a first cylinder (6); when the piston rod of the first cylinder (6) is in an extended state, the four side surfaces of the workpiece (100) placed on the upper surface of the adsorption plate (2) of the first clamping assembly (200) are respectively in compression contact with the limit blocks (7) or the movable push blocks (8) on the outer sides thereof.

5. The processing method of the cash register panel according to claim 4, characterized in that: The bottom of one side surface of the workpiece (100) has a strip-shaped protrusion (104) extending along its length direction, the upper surface of the strip-shaped protrusion (104) is an inclined surface inclined downward in a direction away from the workpiece (100), and the movable push block (8) matched with the side surface of the workpiece (100) having the strip-shaped protrusion (104) is provided with an inclined push surface (81) consistent with the inclined direction of the inclined surface, and the inclined push surface (81) is formed at the corner between the end surface of the movable push block (8) close to one end of the workpiece (100) and its lower surface, and is located above the upper inclined surface of the strip-shaped protrusion (104).

6. The processing method of the cash register panel according to claim 2 or 3, characterized in that: At least one second cylinder (9) is installed on the lower surface of the base plate (1) of the second clamping assembly (300) and on the outer sides of two opposite sides of the adsorption plate (2); the piston rod of the second cylinder (9) passes upward through the base plate (1) and is hingedly connected to one end of a pressing block (10); a support seat (11) is installed on the base plate (1) and between the adsorption plate (2) and the second cylinder (9); one end of a connecting rod (12) hingedly connected to the support seat (11) is hingedly connected to the middle part of the pressing block (10) at the other end; the other end of the pressing block (10) is used to press and contact with the second processing surface of the workpiece (100) placed on the upper surface of the adsorption plate (2) of the second clamping assembly (300).

7. The processing method of the cash register panel according to claim 6, characterized in that: A bottom sealing plate (13) is sealedly connected to the lower surface of the substrate (1) of the second clamping assembly (300) and is located directly below the adsorption plate (2); an air-uniform cavity (14) is provided between the bottom sealing plate (13) and the substrate (1); the air-uniform cavity (14) is connected to the first cavity (3) via at least three first air holes (5) provided on the substrate (1).

8. The method for processing a cash register panel according to claim 1, characterized in that: The second semi-finished product (102) has a machined through hole (105), and machined grooves (106) are formed around the machined through hole (105) and on the second machined surface. The third clamping assembly (400) further comprises: a second bottom plate (21), a support plate (22) vertically mounted on the second bottom plate (21), and a main plate (23) sealed to one side of the support plate (22), a second cavity (24) is formed between the main plate (23) and the support plate (22), and the main plate (23) has a plurality of adsorption areas (25) on a surface opposite to the support plate (22), the plurality of adsorption areas (25) are arranged around the machined groove (106), and each adsorption area (25) has a plurality of gas grooves (26) connected to each other and to the second cavity (24).

9. The processing method of the cash register panel according to claim 8, characterized in that: At least one third cylinder (27) is installed on each side of the support plate (22) opposite to the main plate (23) and located on both sides of the main plate (23); the piston rod of the third cylinder (27) passes through the support plate (22) and is hingedly connected to a strip pressure plate (28); a fixed seat (29) installed between the main plate (23) and the third cylinder (27) is hingedly connected to the middle part of the strip pressure plate (28) via a rotating rod (17); when the piston rod of the third cylinder (27) is in an extended state, the strip pressure plate (28) with one end connected to the piston rod of the third cylinder (27) and the other end is in extrusion contact with the second semi-finished product (102).

10. The processing method of the cash register panel according to claim 8 or 9, characterized in that: A sealing plate (18) is sealedly connected to a surface of the support plate (22) on a side opposite to the main plate (23); a third cavity (19) is provided between the sealing plate (18) and the support plate (22); at least three second air holes (20) are provided on the support plate (22) for connecting the third cavity (19) and the second cavity (24); and the third cavity (19) is connected to a vacuum pump or a vacuum generator via a pipeline.

Images