Variable-distance polishing and grinding jig

Abstract

The invention discloses a variable-pitch polishing jig, and belongs to the technical field of polishing equipment. Comprising a bottom plate; a plurality of molded surface modules are arranged on the linear rail, and the molded surface modules are used for installing products; the single-axis robot is mounted on the bottom plate; the fixed base is arranged on the bottom plate, the fixed base and the single-shaft robot are located at the two ends of the linear rail respectively, the movable plate is connected with an output shaft of the single-shaft robot, the two ends of the shear-fork structure are connected with the movable plate and the fixed base respectively, and a cross joint of the shear-fork structure is fixedly connected with the molded surface module; the single-axis robot drives the moving plate to move, the moving plate drives the distance between the molded surface modules to be increased or decreased through the shear fork structure, and when the distance between the molded surface modules is increased, the polishing machine can conveniently conduct independent polishing operation on the end of a product; and when the distance between the molded surface modules is reduced, the polishing wheel can conveniently polish the upper surfaces of a plurality of products at the same time. And the grinding and polishing requirements of products with different sizes are met.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding and polishing equipment, and in particular relates to a variable-distance grinding and polishing jig. Background Art

[0002] In the existing automated grinding and polishing operations of water-cut decorative strip products, jigs are generally required to assist in product positioning and clamping. The spacing between products in existing jigs is generally a fixed value, which cannot be changed after design and manufacturing, which is not conducive to process adjustment. In addition, since the product spacing required for the grinding process and the polishing process is different, it is generally necessary to separately open two jigs with different spacings to adapt to the grinding and machine polishing processes respectively, which increases the product manufacturing cost. Summary of the invention

[0003] The present invention aims at the above problems existing in the prior art and proposes a variable-distance polishing and grinding jig integrating the two processes of grinding and polishing.

[0004] The present invention can be achieved through the following technical solutions:

[0005] A variable-distance polishing and grinding jig, comprising:

[0006] Base plate;

[0007] A plurality of linear rails are arranged in parallel on the bottom plate, and a plurality of profile modules are arranged on the linear rails, and the profile modules are used to install products;

[0008] A single-axis robot mounted on a base plate;

[0009] A fixed base, a movable plate and a scissor structure, wherein the fixed base is arranged on a bottom plate and is respectively located at two ends of the linear rail with the single-axis robot, the movable plate is connected to the output shaft of the single-axis robot, two ends of the scissor structure are respectively connected to the movable plate and the fixed base, and the cross joint of the scissor structure is connected and fixed to the profile module;

[0010] The single-axis robot drives the moving plate to move, and the moving plate drives the spacing of the profile mold sets to increase or decrease through a scissor structure, wherein:

[0011] When the spacing between the profile modules increases, there is enough space between adjacent products, which makes it easier for the robot to drive the grinder to perform separate grinding operations on the ends of the products.

[0012] When the spacing between the molding surface modules is reduced, it is convenient for the robot to drive the polishing wheel to polish the upper surfaces of multiple products simultaneously.

[0013] As a further improvement of the present invention, the number of cross joints of the scissors-type structure is consistent with the number of the profile modules, and the cross joints are connected to the profile modules one-to-one. When the single-axis robot drives the movable plate to move, the scissors-type structure drives the spacing between each profile module to increase or decrease synchronously and uniformly through each cross joint.

[0014] As a further improvement of the present invention, it also includes a profile clamping module, which is arranged at the bottom of the profile module, and the profile clamping module includes:

[0015] A first fixed seat connected to the slider of the linear rail;

[0016] A first driving rod: the first driving rod is arranged inside the first fixing seat, and the first driving rod can move up and down along the first fixing seat and drive the entire clamping action;

[0017] A first clamping arm, the lower part of which is hinged to the first driving rod via a first driving pin, and the middle part of which is provided with a slot, through which a fixing pin passes and is connected to the first fixing seat;

[0018] The positioning pins are inserted upward from the bottom of the profile die set and are used to achieve the clamping and loosening of the profile die set.

[0019] As a further improvement of the present invention, a clamp is provided on the top of the first clamping arm, and the clamp is used to clamp or release the positioning pin, wherein:

[0020] When the chuck clamps the positioning pin, the positioning pin is tightly connected with the profile die set;

[0021] When the clamp releases the positioning pin, the positioning pin is loosely connected to the molding die set.

[0022] As a further improvement of the present invention, the profile clamping module also includes a first compression spring and a first locking nut. The first locking nut is fixed to the bottom of the first driving rod. The first compression spring is sleeved on the first driving rod and the two ends of the first compression spring are respectively abutted against the first fixing seat and the first locking nut. When not subject to external force, the first compression spring always provides a downward force to the first driving rod and enables the chuck to clamp the positioning pin.

[0023] As a further improvement of the present invention, it also includes a loosening profile die set, which is arranged at the bottom of the profile clamping die set, and the loosening profile die set includes:

[0024] A toggle clamp fixing seat and the toggle clamp, which are mounted on the bottom plate and used to fix the toggle clamp;

[0025] A guide rod connected to an output end of the toggle clamp and moving linearly with the action of the toggle clamp;

[0026] A swing arm mounting seat, a swing arm and a support plate, wherein the swing arm mounting seat is mounted on the guide rod, and two ends of the swing arm are respectively hinged to the swing arm mounting seat and the support plate.

[0027] As a further improvement of the present invention, the support plate is located at the bottom of the first driving rod, wherein:

[0028] When the toggle clamp is released, the support plate descends and separates from the first driving rod. At this time, the first driving rod is in the lower position under the action of the first compression spring, the clamp clamps the positioning pin, and the profile die set is in a clamped state;

[0029] When the elbow clamp is clamped, the support plate rises and pushes up the first driving rod. At this time, the first clamping arm rotates around the first driving pin, the fixing pin moves from the top end of the slot to the bottom end, the clamp opens and releases the positioning pin, and the molding die set is in a loosened state.

[0030] As a further improvement of the present invention, it also includes a product clamping module, which is arranged through the molding die and is used to clamp or release the product, and the product clamping module includes:

[0031] A second fixing seat, which is installed on the molding die set;

[0032] A second driving rod, which passes through the second fixing seat and can move up and down along the second fixing seat;

[0033] The second clamping arm has an oblique groove at its lower end, and is connected to the second driving rod through a second driving pin passing through the oblique groove. At the same time, the second clamping arm is connected to the second fixed seat through a rotating pin, and the second clamping arm is driven to rotate by the second driving rod to clamp or release the product.

[0034] As a further improvement of the present invention, the product clamping module also includes a second compression spring and a second locking nut. The second locking nut is fixed to the lower end of the second driving rod. The second compression spring is sleeved on the second driving rod and its two ends are respectively abutted against the second fixing seat and the second locking nut. When not affected by external force, the second compression spring always provides a downward force to the second driving rod and enables the second clamping arm to clamp the product.

[0035] As a further improvement of the present invention, it also includes a loosening product module, which is arranged at the bottom of the product clamping module. The structure of the loosening product module is the same as that of the loosening profile module. The lowering and rising of the support plate are controlled by loosening and clamping the toggle clamp, wherein:

[0036] When the support plate descends, it separates from the product clamping module, and at this time, the second driving rod pulls down the second clamping arm under the action of the second compression spring to clamp the product;

[0037] When the support plate rises, it pushes up the second driving rod, and the second driving rod pushes the second clamping arm to rotate around the rotating pin to release the product.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. Improve processing flexibility: The scissor structure driven by a single-axis robot can realize dynamic adjustment of the spacing between the profile modules, thereby adapting to the grinding and polishing requirements of products of different sizes without the need to replace the fixture, greatly enhancing the flexibility of the processing process;

[0040] 2. Improve production efficiency: The grinding and polishing processes can be quickly switched on the same equipment, reducing product handling time and manpower consumption, and improving the overall efficiency of the production line.

[0041] 3. Improve product quality: By precisely controlling the product spacing, the consistency of the grinding and polishing process is ensured, errors caused by manual operation are avoided, and the quality consistency of the product is improved.

[0042] 4. Simplify the operation process: The automated spacing adjustment mechanism simplifies the operation steps, reduces the labor intensity of operators, and also reduces the risk of product damage caused by improper operation.

[0043] 5. Enhanced safety: Reduce manual intervention, reduce the risk of operators directly contacting high-speed running tools, and improve the safety of the working environment.

[0044] 6. Optimize space utilization: The compact design not only saves floor space within the factory, but also facilitates the layout and management of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a front view of the variable-distance polishing and grinding jig of the present invention (when the product spacing becomes larger);

[0046] Figure 2 It is a top view of the variable-distance polishing and grinding fixture of the present invention (when the product spacing becomes larger);

[0047] Figure 3 It is a left view of the variable-distance polishing and grinding fixture of the present invention (when the product spacing becomes larger);

[0048] Figure 4 It is an axial side view of the variable-distance polishing and grinding fixture of the present invention (when the product spacing becomes larger);

[0049] Figure 5 1 is a top view of the variable-distance polishing and grinding jig of the present invention (when the product spacing becomes smaller);

[0050] Figure 6 This is a left view of the variable-distance polishing and grinding jig of the present invention (when the product spacing becomes smaller);

[0051] Figure 7 This is an axial side view of the variable-distance polishing and grinding fixture of the present invention (when the product spacing becomes smaller);

[0052] Figure 8 It is an axial side view of the variable-distance polishing and grinding jig of the present invention (when the product spacing becomes larger and the grinder is in operation);

[0053] Fig. 9 It is an axial side view of the variable-distance polishing and grinding jig of the present invention (when the product spacing becomes smaller and the polishing wheel is in operation);

[0054] Fig.10 is an axial side view of the loosened product module of the present invention (when the toggle clamp is loosened);

[0055] Fig.11 is an axial side view of the loosened product module of the present invention (when the toggle clamp is clamped);

[0056] Fig.12 It is an axial side view of the loosening profile die set of the present invention (when the toggle clamp is loosened);

[0057] Fig.13 It is an axial side view of the loosening profile die set of the present invention (when the toggle clamp is clamped);

[0058] Fig.14 It is a front view and a partial cross-sectional view (when the profile is clamped) of the profile mold assembly of the present invention;

[0059] Fig.15 It is a front view and a partial cross-sectional view of the molding die set of the present invention (when the molding die is loosened);

[0060] Fig.16 is a top view of the profile die set of the present invention;

[0061] Fig.17 is a cross-sectional view of the product clamping module of the present invention (when clamping the product);

[0062] Fig.18 is a cross-sectional view of the product clamping module of the present invention (when the product is released);

[0063] Fig.19 It is an axial side view of the profile module of the present invention (when the linear rail slider is built-in);

[0064] Fig. 20 It is an axial side view of the profile module of the present invention (when the linear rail slider is external).

[0065] In the figure, 100, bottom plate; 110, linear rail; 111, slider; 120, profile module; 130, product; 131, grinder; 132, polishing wheel; 140, single-axis robot; 150, fixed base; 160, moving plate; 170, scissor structure;

[0066] 200, profile clamping module; 210, first fixing seat; 220, first driving rod; 230, first clamping arm; 231, notch; 232, clamping head; 240, first driving pin; 250, fixing pin; 260, positioning pin; 270, first compression spring; 280, first locking nut;

[0067] 300, release the profile die set; 310, elbow clamp fixing seat; 320, elbow clamp; 330, guide rod; 340, swing arm mounting seat; 350, swing arm; 360, support plate; 370, transverse guide seat; 380, longitudinal guide seat;

[0068] 400, product clamping module; 410, second fixing seat; 420, second driving rod; 430, second clamping arm; 440, second driving pin; 450, rotating pin; 460, second compression spring; 470, second locking nut;

[0069] 500. Release the product module. DETAILED DESCRIPTION

[0070] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0071] like Figure 1-20 As shown, the present invention provides a variable-distance polishing and grinding fixture, comprising:

[0072] Bottom plate 100;

[0073] A plurality of linear rails 110 are arranged in parallel on the bottom plate 100 , and a plurality of profile modules 120 are arranged on the linear rails 110 , and the profile modules 120 are used to install products 130 ;

[0074] A single-axis robot 140 mounted on the base plate 100;

[0075] A fixed base 150, a movable plate 160 and a scissor structure 170, wherein the fixed base 150 is disposed on the bottom plate 100 and is located at two ends of the linear rail 110 with the single-axis robot 140, the movable plate 160 is connected to the output shaft of the single-axis robot 140, and two ends of the scissor structure 170 are respectively connected to the movable plate 160 and the fixed base 150, and the cross joint of the scissor structure 170 is connected and fixed to the profile module 120;

[0076] The single-axis robot 140 drives the moving plate 160 to move, and the moving plate 160 drives the spacing of the profile mold set 120 to increase or decrease through the scissor structure 170, wherein:

[0077] When the spacing between the profile modules 120 increases, there is enough space between adjacent products 130, so that the robot can drive the grinder to perform separate grinding operations on the ends of the products 130;

[0078] When the spacing between the molding surface modules 120 is reduced, it is convenient for the robot to drive the polishing wheel to polish the upper surfaces of multiple products 130 simultaneously.

[0079] The variable-distance polishing and grinding fixture provided in this embodiment has at least the following advantages:

[0080] 1. Improve processing flexibility: The single-axis robot 140 drives the scissor structure 170 to achieve dynamic adjustment of the spacing between the profile modules 120, thereby adapting to the grinding and polishing requirements of products 130 of different sizes without changing the fixture, which greatly enhances the flexibility of the processing process.

[0081] 2. Improve production efficiency: It can quickly switch between grinding and polishing processes on the same equipment, reduce product 130 handling time and manpower consumption, and improve the overall efficiency of the production line.

[0082] 3. Improve product 130 quality: By precisely controlling the product 130 spacing, the consistency of the grinding and polishing process is ensured, errors caused by manual operation are avoided, and the quality consistency of product 130 is improved.

[0083] 4. Simplify the operation process: The automated spacing adjustment mechanism simplifies the operation steps, reduces the labor intensity of operators, and also reduces the risk of product damage caused by improper operation.

[0084] 5. Enhanced safety: Reduce manual intervention, reduce the risk of operators directly contacting high-speed running tools, and improve the safety of the working environment.

[0085] 6. Optimize space utilization: The compact design not only saves floor space within the factory, but also facilitates the layout and management of equipment.

[0086] Preferably, the number of cross joints of the scissor structure 170 is consistent with the number of profile modules 120, and the cross joints are connected to the profile modules 120 one-to-one, thereby simplifying the design of the control system, so that the single-axis robot 140 only needs to control the movement of the moving plate 160 to adjust the spacing between all profile modules 120, thereby achieving the purpose of synchronously and uniformly increasing or decreasing the spacing between each profile module 120.

[0087] Preferably, it also includes a profile clamping module 200, which is arranged at the bottom of the profile module 120, and the profile clamping module 200 includes:

[0088] A first fixing seat 210, which is connected to the slider 111 of the linear rail 110, serves as a basic support part of the profile clamping module 200 to ensure the stability of the entire module;

[0089] The first driving rod 220 is disposed inside the first fixing seat 210. The first driving rod 220 can move up and down along the first fixing seat 210 and drive the entire clamping action;

[0090] The first clamping arm 230, the lower part of which is hinged to the first driving rod 220 via a first driving pin 240, and the middle part of which is provided with a notch 231, through which a fixing pin 250 passes and is connected to the first fixing seat 210;

[0091] The positioning pin 260 is inserted upward from the bottom of the profile mold 120 and is used to clamp and release the profile mold 120 , wherein the first clamping arm 230 clamps or releases the positioning pin 260 to achieve clamping and release of the profile mold 120 by the positioning pin 260 .

[0092] Furthermore, a clamp 232 is provided at the top of the first clamping arm 230, and the lower end of the positioning pin 260 is located between the two clamps 232. The clamp 232 is used to clamp or release the positioning pin 260.

[0093] When the clamp 232 clamps the positioning pin 260, the positioning pin 260 is tightly connected with the profile die set 120;

[0094] When the clamp 232 releases the positioning pin 260 , the positioning pin 260 is loosely connected to the molding die set 120 .

[0095] In other words, the profile die set 120 can be clamped and released simply by moving the first driving rod 220 up and down.

[0096] In addition, the profile clamping module 200 also includes a first compression spring 270 and a first locking nut 280. The first locking nut 280 is fixed to the bottom of the first driving rod 220. The first compression spring 270 is sleeved on the first driving rod 220 and the two ends of the first compression spring 270 are respectively abutted against the first fixing seat 210 and the first locking nut 280. When not subject to external force, the first compression spring 270 always provides a downward force to the first driving rod 220 and enables the chuck 232 to clamp the positioning pin 260, thereby realizing the function of automatic clamping without the need for an additional power source to maintain the clamping state.

[0097] Moreover, only an appropriate external force is required to change the position of the first driving rod 220, so that the product 130 can be clamped or released quickly, thereby achieving the purpose of rapid response and improving work efficiency.

[0098] Preferably, it also includes a profile releasing module 300, which is arranged at the bottom of the profile clamping module 200, and the profile releasing module 300 includes:

[0099] A toggle clamp fixing seat 310 and a toggle clamp 320, which are mounted on the base plate 100 and used to fix the toggle clamp 320, the toggle clamp 320 is a device that can be opened and closed by a handle or an electric drive, and is used to control the extension and retraction of the guide rod 330;

[0100] A guide rod 330, which is connected to the output end of the toggle clamp 320 and moves linearly with the movement of the toggle clamp 320;

[0101] The swing arm mounting base 340, the swing arm 350 and the support plate 360, the swing arm mounting base 340 is installed on the guide rod 330, and the two ends of the swing arm 350 are respectively hinged to the swing arm mounting base 340 and the support plate 360. The function of the swing arm 350 is to drive the support plate 360 ​​to rise or fall through the rotation of the hinge point when the guide rod 330 moves.

[0102] Furthermore, the support plate 360 ​​is located at the bottom of the first driving rod 220, wherein:

[0103] When the toggle clamp 320 is released, the support plate 360 ​​descends and separates from the first drive rod 220. At this time, the first drive rod 220 is in the lower position under the action of the first compression spring 270, and the clamp 232 clamps the positioning pin 260, and the profile die set 120 is in a clamped state;

[0104] When the elbow clamp 320 is clamped, the support plate 360 ​​rises and pushes up the first drive rod 220. At this time, the first clamping arm 230 rotates around the first drive pin 240, and the fixing pin 250 moves from the top end to the bottom end of the slot 231. The clamp head 232 opens and releases the positioning pin 260, and the molding die set 120 is in a loosened state.

[0105] In addition, the release profile mold assembly 300 also includes at least two transverse guide seats 370 and at least two longitudinal guide seats 380, wherein the transverse guide seat 370 is installed on the base plate 100 and is used for the guide rod 330 to pass through, thereby playing a guiding role during the linear movement of the guide rod 330, and the longitudinal guide seat 380 is connected to the support plate 360, and plays a guiding role during the up and down movement of the support plate 360.

[0106] Specifically, the working principle of clamping and loosening the profile die set 120 is as follows:

[0107] 1. Clamping state: under the action of the first compression spring 270, the first driving rod 220 moves downward, and drives the clamping head 232 of the first clamping arm 230 to close inward through the first driving pin 240, clamping the positioning pin 260, so that the positioning pin 260 is tightly connected with the molding die set 120, thereby clamping the product 130;

[0108] 2. Released state: When the profile module 300 needs to be released, the toggle clamp 320 is opened manually or electrically, the guide rod 330 is extended, and the swing arm mounting seat 340 is driven to move, and then the support plate 360 ​​is driven to rise through the swing arm 350. When the support plate 360 ​​rises, it pushes the first driving rod 220 of the profile clamping module 200, so that it overcomes the force of the first compression spring 270 and moves upward, thereby driving the clamping head 232 of the first clamping arm 230 to open outward through the first driving pin 240, releasing the positioning pin 260, and realizing the release of the profile module 120.

[0109] Through the above structural design, the profile die set 120 can be quickly clamped and released.

[0110] Preferably, it also includes a product clamping module 400, which is disposed through the profile module 120 and is used to clamp or release the product 130. The product clamping module 400 includes:

[0111] A second fixing seat 410, which is mounted on the profile die set 120 and serves as a basic support part of the product clamping die set 400;

[0112] A second driving rod 420, which is disposed through the second fixing seat 410 and can move up and down along the second fixing seat 410, and the up and down movement of the second driving rod 420 is used to drive the clamping or loosening action;

[0113] The second clamping arm 430 has an inclined groove at its lower end, and is connected to the second driving rod 420 through the inclined groove via a second driving pin 440. At the same time, the second clamping arm 430 is connected to the second fixed seat 410 via a rotating pin 450, and the second clamping arm 430 is driven to rotate by the second driving rod 420 to clamp or release the product 130.

[0114] Furthermore, the product clamping module 400 also includes a second compression spring 460 and a second locking nut 470. The second locking nut 470 is fixed to the lower end of the second driving rod 420. The second compression spring 460 is sleeved on the second driving rod 420 and its two ends are respectively abutted against the second fixing seat 410 and the second locking nut 470.

[0115] Similarly, in the absence of external force, the second compression spring 460 (through the second locking nut 470) pushes the second drive rod 420 downward, so that the second drive rod 420 is in the lower position. When the second drive rod 420 is in the lower position, the second clamping arm 430 swings downward around the rotating pin 450. Through the action of the second drive pin 440, the inclined groove of the second clamping arm 430 causes the upper end of the second clamping arm 430 to swing inward, thereby clamping the product 130.

[0116] Preferably, it also includes a product release module 500, which is arranged at the bottom of the product clamping module 400. The structure of the product release module 500 is the same as that of the profile release module 300. The support plate 360 ​​is controlled to descend and ascend respectively by loosening and clamping the toggle clamp 320.

[0117] When the support plate 360 ​​descends, it separates from the product clamping module 400. At this time, the second driving rod 420 pulls down the second clamping arm 430 under the action of the second compression spring 460 to clamp the product 130.

[0118] When the support plate 360 ​​rises, it pushes up the second driving rod 420 , and the second driving rod 420 pushes the second clamping arm 430 to rotate around the rotating pin 450 to release the product 130 .

[0119] Specifically, the working principle of the clamping and loosening of the product 130 is as follows:

[0120] 1. Clamping state: when there is no external force, the second compression spring 460, through the action of the second locking nut 470, keeps the second driving rod 420 in a downward trend, and the second clamping arm 430 swings downward around the rotating pin 450, and the upper end of the second clamping arm 430 swings inward through the action of the inclined slot to clamp the product 130;

[0121] 2. Relaxed state: When the elbow clamp 320 is activated, the guide rod 330 begins to extend, driving the swing arm mounting base 340 to move. The movement of the swing arm mounting base 340 drives the swing arm 350 to swing, thereby driving the support plate 360 ​​to rise. After the support plate 360 ​​rises, it will push up the second drive rod 420. When the second drive rod 420 rises, the second clamping arm 430 rotates around the rotating pin 450. Through the action of the second drive pin 440, the oblique groove of the second clamping arm 430 causes the upper end of the clamping arm to open outward, thereby releasing the product 130.

[0122] Through the above structural design, the product 130 can be quickly clamped and released.

[0123] When the molding die set 120 and the product 130 are clamped, the stability of the product 130 during the grinding and polishing process can be ensured, and processing errors caused by vibration or movement can be avoided, thereby improving the processing accuracy and the quality of the product 130.

[0124] In addition, it should be noted that the product clamping module 400 and the profile clamping module 200 in this embodiment differ only in the shape of the support plate 360 ​​, and the other structures are the same.

[0125] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical schemes composed of any combination of the above technical features. The above is a specific implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

[0126] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0127] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0128] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0129] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A variable-distance polishing and grinding fixture, characterized in that: include: Base plate; A plurality of linear rails are arranged in parallel on the bottom plate, and a plurality of profile modules are arranged on the linear rails, and the profile modules are used to install products; A single-axis robot mounted on a base plate; A first fixed seat, a movable plate and a scissor structure, wherein the first fixed seat is arranged on the bottom plate and is respectively located at two ends of the linear rail with the single-axis robot, the movable plate is connected to the output shaft of the single-axis robot, two ends of the scissor structure are respectively connected to the movable plate and the first fixed seat, and the cross joint of the scissor structure is connected and fixed to the profile module; The single-axis robot drives the moving plate to move, and the moving plate drives the spacing of the profile mold sets to increase or decrease through a scissor structure, wherein: When the spacing between the profile modules increases, there is enough space between adjacent products, which makes it easier for the robot to drive the grinder to perform separate grinding operations on the ends of the products. When the spacing between the molding surface modules is reduced, it is convenient for the robot to drive the polishing wheel to polish the upper surfaces of multiple products simultaneously.

2. The variable-length polishing and grinding jig according to claim 1, characterized in that: The number of cross joints of the scissor-type structure is consistent with the number of the profile modules, and the cross joints are connected to the profile modules one by one. When the single-axis robot drives the movable plate to move, the scissor-type structure drives the spacing between each profile module to increase or decrease synchronously and uniformly through each cross joint.

3. The variable-distance polishing and grinding jig according to claim 1, characterized in that: It also includes a profile clamping module, which is arranged at the bottom of the profile module, and the profile clamping module includes: A first fixed seat connected to the slider of the linear rail; A first driving rod: the first driving rod is arranged inside the first fixing seat, and the first driving rod can move up and down along the first fixing seat and drive the entire clamping action; A first clamping arm, the lower part of which is hinged to the first fixing seat via a first driving pin, and the middle part of which is provided with a slot, through which a fixing pin passes and is connected to the first fixing seat; The positioning pins are inserted upward from the bottom of the profile die set and are used to achieve the clamping and loosening of the profile die set.

4. The variable-distance polishing and grinding jig according to claim 3, characterized in that: A clamp is provided on the top of the first clamping arm, and the clamp is used to clamp or release the positioning pin, wherein: When the chuck clamps the positioning pin, the positioning pin is tightly connected with the profile die set; When the clamp releases the positioning pin, the positioning pin is loosely connected to the molding die set.

5. The variable-distance polishing and grinding jig according to claim 4, characterized in that: The profile clamping module also includes a first compression spring and a first locking nut. The first locking nut is fixed to the bottom of the first driving rod. The first compression spring is sleeved on the first driving rod and the two ends of the first compression spring are respectively abutted against the first fixing seat and the first locking nut. When not subject to external force, the first compression spring always provides a downward force to the first driving rod and enables the chuck to clamp the positioning pin.

6. The variable-distance polishing and grinding jig according to claim 4, characterized in that: It also includes a loosening profile die set, which is arranged at the bottom of the profile clamping die set, and the loosening profile die set includes: A toggle clamp fixing seat and the toggle clamp, which are mounted on the bottom plate and used to fix the toggle clamp; A guide rod connected to an output end of the toggle clamp and moving linearly with the action of the toggle clamp; A swing arm mounting seat, a swing arm and a support plate, wherein the swing arm mounting seat is mounted on the guide rod, and two ends of the swing arm are respectively hinged to the swing arm mounting seat and the support plate.

7. The variable-distance polishing and grinding jig according to claim 6, characterized in that: The support plate is located at the bottom of the first driving rod, wherein: When the toggle clamp is released, the support plate descends and separates from the first driving rod. At this time, the first driving rod is in the lower position under the action of the first compression spring, the clamp clamps the positioning pin, and the profile die set is in a clamped state; When the elbow clamp is clamped, the support plate rises and pushes up the first driving rod. At this time, the first clamping arm rotates around the first driving pin, the fixing pin moves from the top end of the slot to the bottom end, the clamp opens and releases the positioning pin, and the molding die set is in a loosened state.

8. The variable-distance polishing and grinding jig according to claim 6, characterized in that: It also includes a product clamping module, which is inserted into the profile module and used to clamp or release the product. The product clamping module includes: A second fixing seat, which is installed on the molding die set; A second driving rod, which passes through the second fixing seat and can move up and down along the second fixing seat; The second clamping arm has an oblique groove at its lower end, and is connected to the second driving rod through a second driving pin passing through the oblique groove. At the same time, the second clamping arm is connected to the second fixed seat through a rotating pin, and the second clamping arm is driven to rotate by the second driving rod to clamp or release the product.

9. The variable-distance polishing and grinding jig according to claim 8, characterized in that: The product clamping module also includes a second compression spring and a second locking nut. The second locking nut is fixed to the lower end of the second driving rod. The second compression spring is sleeved on the second driving rod and its two ends are respectively abutted against the second fixing seat and the second locking nut. When not affected by external force, the second compression spring always provides a downward force to the second driving rod and enables the second clamping arm to clamp the product.

10. The variable-distance polishing and grinding jig according to claim 9, characterized in that: It also includes a product release module, which is arranged at the bottom of the product clamping module. The structure of the product release module is the same as that of the profile release module. The support plate is controlled to descend and ascend respectively by the toggle clamp by releasing and clamping. When the support plate descends, it separates from the product clamping module, and at this time, the second driving rod pulls down the second clamping arm under the action of the second compression spring to clamp the product; When the support plate rises, it pushes up the second driving rod, and the second driving rod pushes the second clamping arm to rotate around the rotating pin to release the product.

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