Positioning device for improving machining precision

Abstract

The positioning device capable of improving the machining precision comprises a device body, a first sliding groove and a machining table, and a support is arranged at the upper end of the device body in the front-and-back direction, compared with the prior art, the positioning device has the advantages that the first sliding groove, a screw rod, a front-and-back moving sliding block, a spur rack, a spur gear, a guide rail and the machining table are additionally arranged, and therefore the machining precision is improved; after a workpiece is primarily positioned, a first forward and reverse rotation motor is started to drive a screw to rotate, the screw is matched with a first screw hole to drive a front-back moving sliding block to slide in a first sliding groove, a second forward and reverse rotation motor is started to drive a spur gear to rotate on a spur rack, a guide groove in the lower surface of a machining table slides on a guide rail, and then the accuracy of the drilling position can be improved; and a second sliding groove, rotating screw rods and a clamping piece are additionally arranged, the rotating screw rods on the left side and the right side are rotated correspondingly, the rotating screw rods are matched with a second screw hole to drive a sliding block to slide in the second sliding groove, the workpiece is clamped by a clamping plate, and the workpiece is positioned.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing positioning devices, and in particular relates to a positioning device for improving processing accuracy. Background Art

[0002] Mechanical processing is the use of related mechanical equipment to perform different types of processing on workpieces, such as drilling holes in workpieces. Before drilling holes in the workpiece, it is often necessary to clamp and position the workpiece first to ensure that it does not deviate during the drilling process, resulting in differences in drilling accuracy. However, most of the positioning devices commonly used in mechanical production cannot be moved after the workpiece is clamped and positioned. This is because the operator's judgment of the drilling position will result in errors, and there will often be slight deviations in the drilling position during clamping and positioning. When the deviation is not large and is within the tolerance range, the operator will often choose to drill directly instead of removing the workpiece and re-clamping it. This causes the hole position of many workpieces to often hover at the edge of the tolerance. Once other unexpected situations occur during processing, it will directly cause the workpiece drilling to exceed the tolerance, resulting in unqualified processing, which in turn leads to an increase in the scrap rate and a certain cost burden for the manufacturer.

[0003] Secondly, if the device for positioning the workpiece for drilling can fine-tune the position of the workpiece after the initial clamping and positioning, it can avoid the problem of the operator not removing the workpiece for repositioning due to the tolerance within the range caused by the deviation.

[0004] In summary, if the device for drilling and positioning the workpiece in mechanical processing cannot adjust the position after the initial clamping and positioning, the processing accuracy may be reduced, so it is hoped to propose a new structure to solve the above technical problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a positioning device for improving machining accuracy and to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized through the following technical scheme: a positioning device for improving processing accuracy, comprising: a device main body, a slide groove and a processing table, a bracket is provided in the front-to-back direction of the upper end of the device main body, a groove is provided at the center of the lower surface of the bracket, a slide groove is provided on the inner side surfaces at both left and right ends of the groove, a screw is provided on the inner side of the groove, a processing piece is provided on the outer side of the screw, a forward and backward movable slider is provided on the upper end of the processing piece, a table is provided below the bracket, guide rails are provided on the front and rear sides of the upper surface of the table, a processing table is provided above the guide rail, a groove is provided at the center of the upper surface of the processing table, a rotating screw is provided on the inner side of the groove, a clamping piece is provided on the outer side of the rotating screw, a rack groove is provided below the rear side surface of the processing table, a spur rack is provided on the inner side of the rack groove, and a spur gear is provided on the rear side of the spur rack.

[0007] As a preferred embodiment, a screw hole is formed through the front side of the forward and backward moving slider, the screw rod is threadedly connected to the screw hole, and a forward and reverse motor is provided on the front side of the bracket. Starting the forward and reverse motor can drive the screw rod to rotate, so that the screw rod drives the forward and backward moving slider to move in cooperation with the screw hole.

[0008] As a preferred embodiment, the forward and backward movable slider is movably engaged with a slide groove, a drill bit is provided below the forward and backward movable slider, and the forward and backward movable slider slides along the slide groove engaged with it, which can facilitate the linear movement of the workpiece.

[0009] As a preferred embodiment, guide grooves are provided on both the front and rear sides of the lower surface of the processing table, and the guide grooves and guide rails are movably engaged with each other. The mutual engagement of the guide rails and the guide grooves can facilitate the left and right linear movement of the processing table.

[0010] As a preferred embodiment, the spur rack and the spur gear are meshed with each other, and a forward and reverse motor 2 is provided on the rear side of the lower surface of the table plate. The upper motor shaft of the forward and reverse motor 2 is connected to the spur gear through a key. Starting the forward and reverse motor 2 can drive the spur gear to rotate, so that the spur gear rotates on the spur rack meshed with it, thereby adjusting the left and right position of the processing table.

[0011] As a preferred embodiment, a slider is provided at the lower end of the clamping member, and a second slide groove is provided on the inner side surfaces of both the front and rear ends of the second groove, and the slider and the second slide groove are movably engaged with each other.

[0012] As a preferred embodiment, a second screw hole is formed through the right side surface of the slider, and the second screw hole is threadedly connected to the rotating screw. A clamping plate is provided on the upper end of the clamping member. The clamping member and the rotating screw are provided in two groups and are symmetrically arranged. The rotating screws on the left and right sides are rotated respectively, so that the slider is driven to slide in the second slide groove under the cooperation of the rotating screw and the second screw hole, so that the clamping plate clamps the workpiece and can position the workpiece.

[0013] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by adding a slide groove, a screw, a forward and backward moving slider, a spur rack, a spur gear, a guide rail and a processing table, after the workpiece is initially positioned, the forward and reverse motor one is started to drive the screw to rotate, and the cooperation of the screw and the screw hole one drives the forward and backward moving slider to slide in the slide groove one, and the forward and reverse motor two is started to drive the spur gear to rotate on the spur rack, so that the guide groove on the lower surface of the processing table slides on the guide rail, thereby improving the accuracy of the drilling position, thereby improving the processing accuracy, and by adding a slide groove two, a rotating screw and a clamping piece, the rotating screws on the left and right sides are rotated respectively, so that the cooperation of the rotating screw and the screw hole two drives the slider to slide in the slide groove two, so that the splint clamps the workpiece to position the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the upper side of a positioning device for improving processing accuracy in the utility model.

[0016] Figure 2 It is a schematic diagram of the overall structure of the lower side of a positioning device for improving processing accuracy in the utility model.

[0017] Figure 3 The utility model is a schematic diagram of the overall structure of a positioning device for improving machining accuracy.

[0018] Figure 4 The utility model is a schematic diagram of the overall structure of a processing table in a positioning device for improving processing accuracy.

[0019] Figure 5 It is a schematic diagram of the overall structure of a clamping member in a positioning device for improving machining accuracy according to the utility model.

[0020] Figure 6 The utility model is a schematic diagram of the overall structure of a workpiece in a positioning device for improving processing accuracy.

[0021] In the figure, 100-device body, 110-bracket, 120-groove 1, 130-slideway 1, 140-table, 150-guide rail, 160-processing table, 170-groove 2, 180-slideway 2, 190-guideway;

[0022] 200-spur rack, 210-spur gear, 220-rotating screw, 230-clamping part, 240-slider, 250-screw hole 2, 260-clamping plate, 270-processing part, 280-forward and backward moving slider, 290-screw hole 1;

[0023] 300-drill bit, 310-screw. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 6 The utility model provides a technical solution: a positioning device for improving processing accuracy, comprising: a device body 100, a slide groove 130 and a processing table 160, and a bracket 110 is provided on the upper end of the device body 100 in the front-to-back direction;

[0026] A groove 120 is formed at the center of the lower surface of the bracket 110. A slide groove 130 is formed on the inner side surfaces of the left and right ends of the groove 120. A screw rod 310 is formed on the inner side of the groove 120. A processing piece 270 is formed on the outer side of the screw rod 310. A slider 280 is formed on the upper end of the processing piece 270. A table 140 is formed below the bracket 110.

[0027] Guide rails 150 are provided on both the front and rear sides of the upper surface of the table 140, a processing table 160 is provided above the guide rails 150, a groove 2 170 is provided at the center of the upper surface of the processing table 160, a rotating screw 220 is provided inside the groove 270, a clamping member 230 is provided outside the rotating screw 220, a rack groove is provided at the lower rear side surface of the processing table 160, a spur rack 200 is provided inside the rack groove, and a spur gear 210 is provided on the rear side of the spur rack 200.

[0028] A screw hole 290 is formed through the front side of the forward and backward moving slider 280, and the screw rod 310 is threadedly connected with the screw hole 290. A forward and reverse motor 1 is provided on the front side of the bracket 110. Starting the forward and reverse motor 1 can drive the screw rod 310 to rotate, so that the screw rod 310 drives the forward and backward moving slider 280 to move in cooperation with the screw hole 290.

[0029] The forward and backward moving slider 280 is movably engaged with the slide groove 130, and a drill bit 300 is provided below the forward and backward moving slider 280. The forward and backward moving slider 280 slides along the slide groove 130 engaged with it, which can facilitate the linear movement of the workpiece 270.

[0030] Guide grooves 190 are provided on both the front and rear sides of the lower surface of the processing table 160 . The guide grooves 190 and the guide rails 150 are movably engaged with each other. The mutual engagement of the guide rails 190 and the guide grooves 150 can facilitate the left and right linear movement of the processing table 160 .

[0031] The spur rack 200 is meshed with the spur gear 210. A forward and reverse motor 2 is provided on the rear side of the lower surface of the table 140. The upper motor shaft of the forward and reverse motor 2 is connected to the spur gear 210 through a key. Starting the forward and reverse motor 2 can drive the spur gear 210 to rotate, so that the spur gear 210 rotates on the spur rack 200 that is meshed with it, thereby adjusting the left and right position of the processing table 160.

[0032] A slider 240 is disposed at the lower end of the clamping member 230 , and a second slide groove 180 is formed on the inner side surfaces of both the front and rear ends of the second groove 170 , and the slider 240 and the second slide groove 180 are movably engaged with each other.

[0033] A second screw hole 250 is formed on the right side of the slider 240, and the second screw hole 250 is threadedly connected to the rotating screw 220. A clamping plate 260 is provided on the upper end of the clamping member 230. The clamping member 230 and the rotating screw 220 are provided with two groups and are symmetrically arranged. The rotating screws 220 on the left and right sides are rotated respectively, so that the rotating screw 220 and the second screw hole 250 cooperate to drive the slider 240 to slide in the second slide groove 180, so that the clamping plate 260 clamps the workpiece, so that the workpiece can be positioned.

[0034] See also Figure 1-Figure 6 As the first embodiment of the utility model: In order to solve the problem that the drilling positioning device in common mechanical processing cannot adjust the position of the workpiece after the initial positioning, first, the operator starts the forward and reverse motor 1 to drive the screw 310 to rotate, and the cooperation between the screw 310 and the screw hole 1 290 can drive the forward and backward moving slider 280 to slide in the slide groove 1 130. Secondly, the operator starts the forward and reverse motor 2 to drive the spur gear 210 to rotate, so that the spur gear 210 rotates on the spur rack 200 that is meshed with it, and then the guide groove 190 on the lower surface of the processing table 160 slides on the guide rail 150, so that the front, back, left and right relative positions of the drill bit 300 and the workpiece can be adjusted, which can improve the accuracy of the drilling position, thereby achieving the effect of improving the processing accuracy.

[0035] See also Figure 1-Figure 5 , as the second embodiment of the utility model: Based on the above embodiment, the workpiece needs to be initially positioned. First, the operator places the workpiece on the upper surface of the processing table 160. Secondly, the operator rotates the rotating screws 220 on the left and right sides respectively, so that the rotating screws 220 and the second screw holes 250 cooperate to drive the slider 240 to slide in the second slide groove 180, so that the clamping plates 260 at the upper ends of the clamping members 230 on both sides are close to the center to clamp the workpiece, thereby positioning the workpiece.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning device for improving processing accuracy, comprising: The device body (100), the first slide groove (130) and the processing table (160) are characterized in that: a bracket (110) is provided on the upper end of the device body (100) in the front-to-back direction; A groove (120) is formed at the center of the lower surface of the bracket (110); a slide groove (130) is formed on the inner side surfaces of the left and right ends of the groove (120); a screw (310) is formed on the inner side of the groove (120); a processing piece (270) is formed on the outer side of the screw (310); a forward and backward movable slider (280) is formed on the upper end of the processing piece (270); and a platform (140) is formed below the bracket (110); Guide rails (150) are provided on both the front and rear sides of the upper surface of the table plate (140); a processing table (160) is provided above the guide rails (150); a groove 2 (170) is provided at the center of the upper surface of the processing table (160); a rotating screw (220) is provided inside the groove 2 (170); a clamping member (230) is provided outside the rotating screw (220); a rack groove is provided below the rear side surface of the processing table (160); a spur rack (200) is provided inside the rack groove; and a spur gear (210) is provided on the rear side of the spur rack (200).

2. A positioning device for improving machining accuracy as claimed in claim 1, characterized in that: A screw hole (290) is formed through the front side of the forward and backward moving slider (280), the screw rod (310) is threadedly connected to the screw hole (290), and a forward and reverse motor (1) is provided on the front side of the bracket (110).

3. A positioning device for improving machining accuracy as claimed in claim 2, characterized in that: The forward and backward movable slider (280) is movably engaged with the first slide groove (130), and a drill bit (300) is provided below the forward and backward movable slider (280).

4. A positioning device for improving machining accuracy as claimed in claim 3, characterized in that: Guide grooves (190) are provided on both the front and rear sides of the lower surface of the processing table (160), and the guide grooves (190) and the guide rails (150) are movably engaged with each other.

5. A positioning device for improving machining accuracy as claimed in claim 4, characterized in that: The spur rack (200) and the spur gear (210) are meshed with each other, and a second forward and reverse motor is provided on the rear side of the lower surface of the table (140), and the motor shaft at the upper end of the second forward and reverse motor is connected to the spur gear (210) via a key.

6. A positioning device for improving machining accuracy as claimed in claim 1, characterized in that: A slider (240) is provided at the lower end of the clamping member (230), and a second slide groove (180) is provided on the inner side surfaces of both the front and rear ends of the second groove (170), and the slider (240) and the second slide groove (180) are movably engaged with each other.

7. A positioning device for improving machining accuracy as claimed in claim 6, characterized in that: The right side of the slider (240) is penetrated to form a second screw hole (250), and the second screw hole (250) is threadedly connected to the rotating screw rod (220). A clamping plate (260) is provided at the upper end of the clamping member (230). The clamping member (230) and the rotating screw rod (220) are both provided with two groups and are symmetrically arranged.

Images