Product positioning and clamping device for centerless grinding machine

Abstract

The utility model discloses a product positioning and clamping device for centerless grinding machine, which comprises a mounting plate, a positioning mechanism is arranged on the top surface of the mounting plate and used for fixing the position of a workpiece, the positioning mechanism comprises a positioning component and a clamping component, the positioning component is arranged on the top surface of the mounting plate and used for positioning the workpiece, and the positioning component comprises a bottom plate fixedly mounted on the top surface of the mounting plate; two movable plates are movably mounted on the top surface of the bottom plate; the utility model relates to the technical field of centerless grinding machine positioning and clamping. According to the product positioning and clamping device for the centerless grinding machine, the clamping force of a workpiece can be improved through the upper clamping block and the lower clamping block, during use, a positioning assembly is adjusted to enable the diameter of a side plate to be matched with that of the workpiece, then the workpiece is placed on the top face of the side plate, and then a first screw rod is rotated to drive a movable block to enable the upper clamping block to descend; and then the upper clamping block can clamp the workpiece through the lower clamping block, the workpiece is prevented from moving or deviating in the grinding process through the clamping force in the up-down and left-right directions, and the workpiece machining precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning and clamping of centerless grinders, in particular to a product positioning and clamping device for a centerless grinder. Background Technique

[0002] A centerless grinder is a grinder that does not require the axial positioning of the workpiece for grinding. It mainly consists of three mechanisms: a grinding wheel, an adjusting wheel, and a workpiece support. Among them, the grinding wheel is responsible for the actual grinding work, the adjusting wheel controls the rotation and feed speed of the workpiece, and the workpiece support supports the workpiece during grinding. It uses a grinding wheel for grinding, and removes the metal material on the surface of the workpiece through friction and grinding to achieve the purpose of precision machining. The main function of the positioning and clamping device of the centerless grinder is to ensure the stability and accuracy of the workpiece during the grinding process.

[0003] The existing product positioning and clamping device for centerless grinders still has the following problems. The existing device generally drives the claw body through a manipulator to clamp the workpiece for grinding. Referring to a high-precision centerless grinder for easy clamping and positioning disclosed in the patent application with the publication number CN217344736U, which includes a bed body and a grinding wheel, a guide wheel, and a support provided on the bed body. The support is provided with a clamping and positioning mechanism that can clamp the workpiece and move the workpiece. The clamping and positioning mechanism includes a manipulator for clamping the workpiece and a transmission device for moving the manipulator. Two manipulators are provided and are arranged corresponding to the axial ends of the support respectively. An optoelectronic sensor is provided on the end face of the manipulator in contact with the workpiece. This utility model is provided with a clamping and positioning mechanism, which automatically adjusts the position of the workpiece before processing to avoid the influence of manual adjustment on the precision of the workpiece finished product.

[0004] However, in the above technology, the device realizes the clamping function of the workpiece by driving the claw body through the manipulator. However, during the actual processing and grinding process, relying only on the clamping force in the left and right directions, when the workpiece is subjected to grinding force or other external disturbances, it may still undergo slight movement or offset. This movement will directly affect the processing accuracy. Moreover, when the device clamps workpieces of different sizes for processing, it is necessary to correspondingly adjust the height of the clamping assembly. However, this adjustment mechanism may not be convenient and flexible enough, and its practicability is average. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a product positioning and clamping device for a centerless grinder, which solves the problems that the existing product positioning and clamping device for a centerless grinder relies only on the clamping force in the left and right directions, and when the workpiece is subjected to grinding force or other external disturbances, it may undergo slight movement or offset, which affects the processing accuracy, and it is not convenient to adjust the height of the clamping assembly, and its practicability is average.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A product positioning and clamping device for a centerless grinder includes a mounting plate, the top surface of which is provided with a positioning mechanism for fixing the position of a workpiece, the positioning mechanism including:

[0007] A positioning assembly is provided on the top surface of the mounting plate for positioning the workpiece, the positioning assembly comprising a base plate fixedly mounted on the top surface of the mounting plate, and two movable plates are movably mounted on the top surface of the base plate;

[0008] A clamping assembly is provided on the top surfaces of the two movable plates for clamping a workpiece for fixing. The clamping assembly includes a side plate fixedly mounted on the top surfaces of the two movable plates, an adjustment slot is provided inside the side plate, an adjustment box is movably mounted inside the adjustment slot, a notch is provided on the opposite side of the adjustment box, a lower clamping block is fixedly mounted on the bottom surface of the opposite side of the adjustment box, a first screw and a movable block are movably mounted inside the adjustment box, and an upper clamping block is fixedly mounted on the opposite side of the movable block;

[0009] The adjusting assembly is arranged on one side of the side plate and is used to adjust the height of the clamping assembly.

[0010] Preferably, the left and right sides of the adjustment slot both pass through the inside of the side plate and extend to the outside of the side plate, and the opposite side of the movable block movably passes through the inside of the slot and is fixedly mounted on one side of the upper clamping block.

[0011] Preferably, the bottom end thread of the first screw rod passes through the top surface of the movable block and is movably mounted on the bottom surface of the inner cavity of the adjustment box, and the top end of the first screw rod movably passes through the interior of the adjustment box and the adjustment slot and extends to the top surface of the side plate.

[0012] Preferably, the positioning assembly also includes a movable groove formed by a positioning mechanism on the top surface of the base plate, and a positive and negative screw is movably installed inside the movable groove. The bottom surfaces of the two movable plates are slidably installed inside the movable groove, and the left end of the positive and negative screw thread passes through the left sides of the two movable plates and is movably installed on the left side of the movable groove, and the right end of the positive and negative screw movably passes through the inside of the movable groove and extends to the right side of the base plate.

[0013] Preferably, the adjustment assembly includes a connecting plate and a top plate fixedly mounted on one side of the base plate, a connecting block is fixedly mounted on the side of the slot away from the lower clamping block, a second screw is threadedly mounted on the top surface of the connecting block, and a knob is fixedly mounted on the top end of the second screw.

[0014] Preferably, the bottom end of the second screw rod is threaded through the bottom surface of the connecting block and is movably mounted on the top surface of the connecting plate, and the top end of the second screw rod is movably mounted through the bottom surface of the top plate and fixedly mounted on the bottom surface of the knob.

[0015] Beneficial effects

[0016] The present utility model provides a product positioning and clamping device for a centerless grinding machine. Compared with the prior art, it has the following beneficial effects:

[0017] (1) For this product positioning and clamping device for a centerless grinding machine, the clamping force of the workpiece can be improved by arranging the upper clamping block and the lower clamping block. During use, adjust the positioning component to make the side plate adapt to the diameter of the workpiece, then place the workpiece on the top surface of the side plate, and then rotate the first screw rod to drive the movable block to lower the upper clamping block. Then, the upper clamping block will clamp the workpiece through the lower clamping block, and the clamping force in the up-down, left-right directions can prevent the workpiece from moving or shifting during grinding, improving the accuracy during workpiece processing.

[0018] (2) For this product positioning and clamping device for a centerless grinding machine, the height of the workpiece can be conveniently adjusted by arranging the second screw rod and the connecting block. During use, rotate the knob to drive the second screw rod to rotate. Then, the second screw rod will drive the clamping component through the connecting block to adjust the height of the workpiece for subsequent grinding, which has good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional external view schematic diagram of the present utility model;

[0020] Figure 2 is a sectional three-dimensional external view schematic diagram of the present utility model;

[0021] Figure 3 is a sectional three-dimensional external view schematic diagram of the clamping component of the present utility model.

[0022] In the figure: 1 - mounting plate, 2 - positioning mechanism, 21 - positioning component, 211 - bottom plate, 212 - movable plate, 213 - positive and negative thread screw rod, 214 - movable groove, 22 - clamping component, 221 - side plate, 222 - adjustment groove, 223 - lower clamping block, 224 - first screw rod, 225 - upper clamping block, 226 - movable block, 227 - notch, 228 - adjustment box, 23 - adjustment component, 231 - connecting plate, 232 - second screw rod, 233 - connecting block, 234 - top plate, 235 - knob. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides two technical solutions:

[0025] Figure 1-Figure 3 The first embodiment is shown: a product positioning and clamping device for a centerless grinding machine, including a mounting plate 1. A positioning mechanism 2 is arranged on the top surface of the mounting plate 1 for fixing the position of the workpiece. The positioning mechanism 2 includes:

[0026] A positioning component 21, arranged on the top surface of the mounting plate 1 for positioning the workpiece. The positioning component 21 includes a bottom plate 211 fixedly installed on the top surface of the mounting plate 1. Two movable plates 212 are movably installed on the top surface of the bottom plate 211, and both of the two movable plates 212 are convex-shaped;

[0027] A clamping component 22, arranged on the top surfaces of the two movable plates 212 for clamping and fixing the workpiece. The clamping component 22 includes side plates 221 fixedly installed on the top surfaces of the two movable plates 212. An adjustment groove 222 is formed inside the side plates 221. An adjustment box 228 is movably installed inside the adjustment groove 222, and the cross-section of the adjustment box 228 is cross-shaped. The size specifications of the adjustment box 228 and the adjustment groove 222 are adapted to each other. A notch 227 is formed on the opposite side of the adjustment box 228. A lower clamping block 223 is fixedly installed on the bottom surface of the opposite side of the adjustment box 228, and the top surface of the lower clamping block 223 is inclined. A first screw rod 224 and a movable block 226 are movably installed inside the adjustment box 228. An upper clamping block 225 is fixedly installed on the opposite side of the movable block 226, and the bottom surface of the upper clamping block 225 is inclined;

[0028] An adjustment component 23, arranged on one side of the side plate 221 for adjusting the height of the clamping component 22. Both the left and right sides of the adjustment groove 222 penetrate through the inside of the side plate 221 and extend to the outside of the side plate 221. The opposite side of the movable block 226 movably penetrates through the inside of the notch 227 and is fixedly installed on one side of the upper clamping block 225. The bottom end of the first screw rod 224 is threadedly penetrated through the top surface of the movable block 226 and is movably installed on the bottom surface of the inner cavity of the adjustment box 228. The top end of the first screw rod 224 movably penetrates through the inside of the adjustment box 228 and the adjustment groove 222 and extends to the top surface of the side plate 221. Rotating the first screw rod 224 can drive the movable block 226 to lower the upper clamping block 225. Then, the upper clamping block 225 will clamp the workpiece through the lower clamping block 223. The positioning component 21 further includes a movable groove 214 formed on the top surface of the bottom plate 211 of the positioning mechanism 2. A left-right threaded screw rod 213 is movably installed inside the movable groove 214. The bottom surfaces of the two movable plates 212 are both slidably installed inside the movable groove 214. The left end of the left-right threaded screw rod 213 is threadedly penetrated through the left sides of the two movable plates 212 and is movably installed on the left side of the movable groove 214. The right end of the left-right threaded screw rod 213 movably penetrates through the inside of the movable groove 214 and extends to the right side of the bottom plate 211. Rotating the left-right threaded screw rod 213 can drive the two left-right threaded screw rods 213 to move towards the opposite side to adapt to the size of the workpiece.

[0029] The upper clamping block 225 and the lower clamping block 223 are provided to improve the clamping force of the workpiece. When in use, the positioning assembly 21 is adjusted to make the side plate 221 match the diameter of the workpiece, and then the workpiece is placed on the top surface of the side plate 221. The first screw 224 is rotated to drive the movable block 226 to lower the upper clamping block 225. Then the upper clamping block 225 will clamp the workpiece through the lower clamping block 223. The clamping force in the up, down, left and right directions prevents the workpiece from moving or offsetting during grinding, thereby improving the accuracy of workpiece processing.

[0030] Figure 1-Figure 3 A second embodiment is shown, and its main difference from the first embodiment is that the adjusting assembly 23 includes a connecting plate 231 and a top plate 234 fixedly mounted on one side of the base plate 211, and a connecting block 233 is fixedly mounted on the side of the slot 227 away from the lower clamping block 223, and a second screw 232 is threadedly mounted on the top surface of the connecting block 233, and a knob 235 is fixedly mounted on the top end of the second screw 232, and the bottom end of the second screw 232 is threaded through the bottom surface of the connecting block 233 and movably mounted on the top surface of the connecting plate 231, and the top end of the second screw 232 movably penetrates the bottom surface of the top plate 234 and is fixedly mounted on the bottom surface of the knob 235, and rotating the knob 235 drives the second screw 232 to rotate through the connecting block 233 to drive the workpiece to be raised and lowered.

[0031] The second screw 232 and the connecting block 233 are provided to facilitate the adjustment of the height of the workpiece. When in use, the knob 235 is turned to drive the second screw 232 to rotate, and then the second screw 232 will drive the clamping assembly 22 through the connecting block 233 to adjust the height of the workpiece for subsequent grinding, which is very practical.

[0032] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0033] During use, the user installs the device on the centerless grinder through the mounting plate 1, and then rotates the forward and reverse screws 213 to drive the two forward and reverse screws 213 to move the side plates 221 to the opposite sides to adapt to the size of the workpiece. When the appropriate spacing is reached, the forward and reverse screws 213 are stopped from rotating to fix the position of the movable plate 212, and then the workpiece is placed on the top surface of the side plate 221, and then the first screw 224 is rotated to drive the movable block 226 to lower the upper clamping block 225, and then the upper clamping block 225 will clamp the workpiece through the lower clamping block 223, and then the knob 235 is turned to drive the second screw 232 to rotate, and then the second screw 232 will drive the clamping assembly 22 through the connecting block 233 to adjust the workpiece to a suitable height. At this time, the workpiece can be ground by the centerless grinder.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include" or "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A product positioning and clamping device for a centerless grinding machine, comprising a mounting plate (1), characterized in that: A positioning mechanism (2) is provided on the top surface of the mounting plate (1) for fixing the position of the workpiece. The positioning mechanism (2) includes: A positioning component (21) is arranged on the top surface of the mounting plate (1) for positioning the workpiece. The positioning component (21) includes a bottom plate (211) fixedly installed on the top surface of the mounting plate (1), and two movable plates (212) are movably installed on the top surface of the bottom plate (211); A clamping component (22) is arranged on the top surfaces of the two movable plates (212) for clamping and fixing the workpiece. The clamping component (22) includes side plates (221) fixedly installed on the top surfaces of the two movable plates (212). An adjustment groove (222) is formed inside the side plates (221). An adjustment box (228) is movably installed inside the adjustment groove (222). A notch (227) is formed on the opposite side of the adjustment box (228). A lower clamping block (223) is fixedly installed on the bottom surface of the opposite side of the adjustment box (228). A first screw rod (224) and a movable block (226) are movably installed inside the adjustment box (228). An upper clamping block (225) is fixedly installed on the opposite side of the movable block (226); An adjustment component (23) is arranged on one side of the side plate (221) for adjusting the height of the clamping component (22).

2. The product positioning and clamping device for a centerless grinding machine according to claim 1, characterized in that: Both the left and right sides of the adjustment groove (222) penetrate through the inside of the side plate (221) and extend to the outside of the side plate (221). The opposite side of the movable block (226) movably penetrates through the inside of the notch (227) and is fixedly installed on one side of the upper clamping block (225).

3. The product positioning and clamping device for a centerless grinding machine according to claim 1, wherein: The bottom end of the first screw rod (224) threadedly penetrates through the top surface of the movable block (226) and is movably installed on the bottom surface of the inner cavity of the adjustment box (228). The top end of the first screw rod (224) movably penetrates through the inside of the adjustment box (228) and the adjustment groove (222) and extends to the top surface of the side plate (221).

4. The product positioning and clamping device for a centerless grinding machine according to claim 1, characterized in that: The positioning component (21) further includes a movable groove (214) formed on the top surface of the bottom plate (211) of the positioning mechanism (2). A left - right threaded screw rod (213) is movably installed inside the movable groove (214). The bottom surfaces of the two movable plates (212) are both slidably installed inside the movable groove (214). The left end of the left - right threaded screw rod (213) threadedly penetrates through the left sides of the two movable plates (212) and is movably installed on the left side of the movable groove (214). The right end of the left - right threaded screw rod (213) movably penetrates through the inside of the movable groove (214) and extends to the right side of the bottom plate (211).

5. The product positioning and clamping device for a centerless grinding machine according to claim 1, characterized in that: The adjustment component (23) includes a connecting plate (231) and a top plate (234) fixedly installed on one side of the bottom plate (211). A connecting block (233) is fixedly installed on the side of the notch (227) away from the lower clamping block (223). A second screw rod (232) is threadedly installed on the top surface of the connecting block (233). A knob (235) is fixedly installed at the top end of the second screw rod (232).

6. The product positioning and clamping device for a centerless grinding machine according to claim 5, wherein: The bottom end thread of the second screw rod (232) penetrates through the bottom surface of the connecting block (233) and is movably installed on the top surface of the connecting plate (231). The top end of the second screw rod (232) movably penetrates through the bottom surface of the top plate (234) and is fixedly installed on the bottom surface of the knob (235).

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