Clamp device for vertical screw hole machining

Abstract

The utility model discloses a clamp device used for vertical screw hole processing, which relates to the technical field of screw hole processing, and comprises a clamp base which comprises a first part and a second part; the V-shaped block is arranged at a first position on the table top of the second part, and a workpiece to be processed can be accommodated in the V-shaped block; the first supporting block and the second supporting block are arranged on the two opposite sides of the V-shaped block respectively; the positioning pin is arranged at the position, close to the upper portion, of the first supporting block; the compression bolt is arranged at the position, close to the upper portion, of the second supporting block; the pressing plate is connected with the clamp base through a plurality of adjustable supporting columns, the V-shaped blocks and the pressing plate conduct radial positioning on a workpiece to be machined, the positioning pins and the compression bolts conduct axial positioning on the workpiece to be machined, and the technical effects that the high machining precision of the form and location tolerance of the workpiece is guaranteed, the machining and production efficiency is improved, and the cost is reduced are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw hole processing, and in particular relates to a clamp device for vertical screw hole processing. Background Art

[0002] In the process of mechanical processing, we often encounter workpieces that need to process vertical screw holes on cylinders (such as the screw nut of the small slide of the lathe). At present, the conventional processing method for this type of workpiece is to first process the outer circle, then use a four-jaw chuck on the lathe to align the axis of the screw hole by marking, and then process the thread or turn the outer circle, and then clamp the processing to complete. But it is obvious that this alignment method is relatively difficult, especially for the high requirements of the form and position tolerance accuracy of each part. It is difficult to achieve the high form and position tolerance accuracy requirements by marking, especially in mass production. Even if you can work slowly and carefully, there are still problems of low work efficiency and high cost. Since the CNC lathe cannot process the workpiece in one clamping, there are also precision errors in repeated positioning of multiple clampings, and there are also problems of work efficiency and cost. Summary of the invention

[0003] The embodiment of the present application provides a clamp device for processing vertical screw holes, which solves the problem in the prior art that it is difficult to achieve high form and position tolerance accuracy requirements for workpieces that need to be processed with vertical screw holes by scribing. In addition, the CNC lathe cannot process the workpiece in one clamping, and there are precision errors caused by multiple clamping and repeated positioning, all of which result in low work efficiency and high cost. The technical effect of ensuring high processing accuracy of the form and position tolerance of the workpiece, improving processing and production efficiency, reducing costs, and facilitating operation is achieved.

[0004] The utility model embodiment provides a fixture device for vertical screw hole processing, the fixture device is installed on a lathe, and the fixture device comprises: a fixture base, the fixture base comprises a first part and a second part, wherein the second part is located above the first part and the second part is fixedly connected to the first part; a V-shaped block, the V-shaped block is arranged at a first position on the table of the second part, and the V-shaped block is connected to the second part through a plurality of first connecting members, wherein the V-shaped block can accommodate a workpiece to be processed; a first support block and a second support block, the first support block and the second support block are respectively arranged at positions on opposite sides of the V-shaped block, wherein the The first support block and the second support block are both provided with mounting holes; a positioning pin, which is arranged at a position near the top of the first support block, and the positioning pin passes through the mounting hole on the first support block to position the workpiece to be processed; a clamping bolt, which is arranged at a position near the top of the second support block, and the clamping bolt passes through the mounting hole on the second support block to clamp the workpiece to be processed; a pressure plate, which is connected to the fixture base through a plurality of adjustable support columns, wherein the V-shaped block and the pressure plate radially position the workpiece to be processed, and the positioning pin and the clamping bolt axially position the workpiece to be processed.

[0005] Preferably, the clamp device further comprises: a plurality of first support column bases, wherein the plurality of first support column bases are fixedly disposed on the pressure plate; and a plurality of second support column bases, wherein the plurality of second support column bases are fixedly disposed on the second portion of the clamp base.

[0006] Preferably, the multiple adjustable support columns include: multiple first adjustable support columns, the first ends of the multiple first adjustable support columns are fixedly connected to the second part of the clamp base through a second connecting member, and the second ends of the multiple first adjustable support columns are rotatably connected to the pressure plate through a third connecting member and a multiple first support column base; multiple second adjustable support columns, the first ends of the multiple second adjustable support columns are connected to the pressure plate through a fourth connecting member, and the second ends of the multiple second adjustable support columns are rotatably connected to the second part of the clamp base through a fifth connecting member and a multiple second support column base.

[0007] Preferably, the second connecting member and the fourth connecting member are both nuts, and washers are installed at the connection between the second connecting member and the second part, and at the connection between the fourth connecting member and the pressure plate.

[0008] Preferably, the third connecting member and the fifth connecting member are both turn pins.

[0009] Preferably, the first connecting member is a screw.

[0010] Preferably, a V-shaped surface is formed on the V-shaped block, and the V-shaped surface is arranged to face upward.

[0011] Preferably, the included angle of the V-shaped surface is 90°.

[0012] Preferably, the fixture base, the pressure plate and the V-shaped block have the same central axis.

[0013] Preferably, the number of the plurality of first support column bases, the plurality of second support column bases, the plurality of first adjustable support columns, and the plurality of second adjustable support columns is at least two.

[0014] The above one or more technical solutions in the embodiments of the present utility model have at least one or more of the following technical effects:

[0015] A fixture device for vertical screw hole processing provided in an embodiment of the utility model is installed on a lathe, and the fixture device includes: a fixture base, a V-shaped block, a first support block, a second support block, a positioning pin, a clamping bolt, and a pressure plate. Specifically: the fixture base includes a first part and a second part, wherein the second part is located above the first part and the second part is fixedly connected to the first part; the V-shaped block is arranged at a first position on the table of the second part, and the V-shaped block is connected to the second part through a plurality of first connecting members, wherein the V-shaped block can accommodate a workpiece to be processed; the first support block and the second support block are respectively arranged at positions on opposite sides of the V-shaped block, wherein mounting holes are provided on the first support block and the second support block; the positioning pin is arranged at a position near the top of the first support block, and the positioning pin passes through the mounting hole on the first support block to position the workpiece to be processed; the clamping bolt is arranged near the second support block The clamping mechanism is arranged between the clamp base and the clamping plate, thereby solving the problem that it is difficult to achieve high shape and position tolerance accuracy requirements by marking for workpieces that need to be processed with vertical screw holes in the prior art. In addition, the CNC lathe cannot process the workpiece by one clamping operation, and there are also precision errors caused by repeated positioning during multiple clamping operations. Both of these problems have technical problems of low work efficiency and high cost, thereby achieving the technical effect of ensuring high processing accuracy of shape and position tolerance of workpieces, improving processing and production efficiency, reducing costs, and facilitating operation.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A side view of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0018] Figure 2 A top view of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0019] Figure 3 A cross-sectional view of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0020] Figure 4 A parts diagram of a fixture base of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0021] Figure 5 This is a schematic structural diagram of a workpiece to be processed of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0022] Figure 6 A cross-sectional view of a workpiece to be processed of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0023] Figure 7 A part diagram of a V-shaped block of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0024] Figure 8 Another part diagram of a V-shaped block of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0025] Fig. 9 A schematic diagram of a processing process of a V-shaped block of a fixture device for vertical screw hole processing in an embodiment of the utility model;

[0026] Fig.10 This is a schematic diagram of clamping and correction of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0027] Fig.11 This is a schematic structural diagram of a fixture device for vertical screw hole processing according to an embodiment of the utility model;

[0028] Fig.12 Another structural schematic diagram of a clamp device for vertical screw hole processing according to an embodiment of the utility model;

[0029] Fig.13 The present invention is another schematic structural diagram of a clamp device for vertical screw hole processing according to an embodiment of the present invention.

[0030] Explanation of the reference numerals: fixture base 1, first part 11, second part 12, V-shaped block 2, first connecting member 3, workpiece to be processed 4, first support block 51, second support block 52, locating pin 6, clamping bolt 7, pressure plate 8, first adjustable support column 91, second connecting member 911, third connecting member 912, second adjustable support column 92, fourth connecting member 921, fifth connecting member 922, first support column base 101, second support column base 102, washer 13. DETAILED DESCRIPTION

[0031] The embodiment of the present application provides a clamp device for vertical screw hole processing to solve the problem in the prior art that it is difficult to achieve high geometric tolerance accuracy requirements by scribing for workpieces that need to be processed with vertical screw holes, and that CNC lathes cannot process the workpieces in one clamping, and there are also precision errors caused by multiple clamping and repeated positioning, all of which result in low work efficiency and high cost.

[0032] The technical solution in the embodiment of the utility model has the following overall structure: it is installed on a lathe through a clamp device, and the clamp device includes: a clamp base, the clamp base includes a first part and a second part, wherein the second part is located above the first part, and the second part is fixedly connected to the first part; a V-shaped block, the V-shaped block is arranged at a first position on the table of the second part, and the V-shaped block is connected to the second part through a plurality of first connecting members, wherein the V-shaped block can accommodate a workpiece to be processed; a first support block and a second support block, the first support block and the second support block are respectively arranged at positions on opposite sides of the V-shaped block, wherein the first support block and the second support block are provided with mounting holes; a positioning pin , the locating pin is arranged at a position close to the top of the first support block, and the locating pin passes through the mounting hole on the first support block to position the workpiece to be processed; the clamping bolt is arranged at a position close to the top of the second support block, and the clamping bolt passes through the mounting hole on the second support block to clamp the workpiece to be processed; the pressure plate is connected to the fixture base through a plurality of adjustable support columns, wherein the V-shaped block and the pressure plate radially position the workpiece to be processed, and the locating pin and the clamping bolt axially position the workpiece to be processed, thereby achieving a high processing accuracy of the workpiece shape and position tolerance, improving processing and production efficiency, reducing costs, and facilitating operation.

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0034] Example

[0035] This embodiment provides a fixture device for vertical screw hole processing. The fixture device is installed on a lathe when in use. Please refer to Figure 1 , Figure 2 , Figure 3 , as follows:

[0036] The fixture device for vertical screw hole processing includes: a fixture base 1, wherein the fixture base 1 includes a first part 11 and a second part 12, wherein the second part 12 is located above the first part 11, and the second part 12 is fixedly connected to the first part 11.

[0037] Specifically, the fixture base 1 is the main supporting structure of the special fixture device, which mainly includes two parts, namely the first part 11 and the second part 12, and the two parts are fixedly connected together, and other related components can be accommodated on the second part 12. The shape of the first part 11 is a truncated cone shape, and the shape of the second part 12 is a cylindrical shape. The bottom surface of the second part 12 is in contact with the large circular surface of the first part 11, and the bottom surface diameter of the second part 12 is greater than the large circular surface diameter of the first part 11. Figure 4 This is the parts drawing of the fixture base. The fixture base can be manufactured using conventional processing technology. However, it should be emphasized that the φ32 boss and the φ170 plane, outer circle and the outer circle of the Morse 6 taper must meet the coaxiality requirements.

[0038] The V-shaped block 2 is arranged at a first position on the table surface of the second part 12, and the V-shaped block 2 is connected to the second part 12 through a plurality of first connecting members 3, wherein the V-shaped block 2 can accommodate a workpiece 4 to be processed.

[0039] Furthermore, the first connecting member 3 is a screw.

[0040] Furthermore, a V-shaped surface is formed on the V-shaped block 2, and the V-shaped surface is arranged to face upward.

[0041] Furthermore, the included angle of the V-shaped surface is 90°.

[0042] Specifically, the V-block 2 is a component of the fixture device that mainly carries the workpiece. The V-block 2 is in the shape of a rectangular structure. Four mounting holes are provided at the four positions close to the top corners of the V-block 2, that is, four mounting holes are provided on the V-block 2. In this way, the V-block 2 can be fixedly installed at the first position on the table top of the second part 12 by passing the first connecting members 3 through the mounting holes one by one. In this embodiment, it is preferred that the first connecting member 3 is a screw, and it can also be adjusted according to actual conditions in actual use. No specific restrictions are made in this embodiment. Furthermore, a V-shaped surface facing upward is provided on the V-block 2, and the workpiece 4 to be processed can be placed in the V-shaped surface of the V-block 2. When the workpiece 4 to be processed is actually used, it is placed on the V-block 2. The part diagram of the workpiece 4 to be processed is as shown in the figure. Figure 5 and Figure 6 As shown, in this embodiment, the angle of the V-shaped surface is preferably 90°.

[0043] The manufacturing accuracy of the fixture base 1 and the V-shaped block 2 is the key to whether the fixture device can ensure the shape and position tolerance accuracy requirements of the workpiece. Figure 7 and Figure 8 As shown in the figure, the difficulty in processing this part is the geometric tolerance requirement between the V-shaped surface with a 90° angle and the φ32 hole. For this, unconventional processing technology must be used. After finishing the φ32 hole, bottom surface, and two side surfaces of the V-shaped block, the V-shaped block 2 is fixed on the rotary table. Before that, the center hole of the rotary table must be used to accurately locate the φ32 hole of the V-shaped block, and the error must be within the range of 0.005mm. The rotary table is installed on a 45° inclined iron. After the micrometer is used to correct the parallelism between the inclined iron and the grinder table guide rail, the inclined iron is fixed on the grinder table. Rotate the rotary table, use the micrometer to correct the parallelism between the side of the V-shaped block and the grinder table guide rail, and then fix the rotary table so that a V-shaped surface can be ground. After completing the grinding work of this surface, rotate the rotary table 180°, and use the micrometer again to correct the parallelism between the side of the V-shaped block on the other side and the grinder table guide rail. After fixing the rotary table, the other V-shaped surface can be ground. Fig. 9 Such a processing technology can ensure the shape and position tolerance requirements between the V-shaped surface of the V-shaped block 2 with an angle of 90° and the φ32 hole.

[0044] The first support block 51 and the second support block 52 are respectively arranged at two opposite sides of the V-shaped block 2 , wherein the first support block 51 and the second support block 52 are both provided with mounting holes.

[0045] Specifically, the first support block 51 and the second support block 52 are main components for supporting the workpiece 4 to be processed. The first support block 51 and the second support block 52 are fixedly installed on both sides of the V-shaped block 2 through mounting parts, that is, at the two end positions of the V-shaped surface, and mounting holes are opened on the first support block 51 and the second support block 52, so that they can be connected with other components through the mounting holes.

[0046] The positioning pin 6 is arranged at a position close to the upper part of the first supporting block 51 , and the positioning pin 6 passes through the mounting hole on the first supporting block 51 to position the workpiece 4 to be processed.

[0047] Specifically, the installation position of the locating pin 6 is located near the top of the first support block 51. By passing the locating pin 6 through the installation hole on the first support block 51, one end of the locating pin 6 can be abutted against one end of the workpiece 4 to be processed. During actual processing, the locating pin 6 can be used to position the workpiece 4 to be processed.

[0048] The clamping bolt 7 is arranged at a position close to the upper part of the second supporting block 52, and the clamping bolt 7 passes through the mounting hole on the second supporting block 52 to clamp the workpiece 4 to be processed.

[0049] Specifically, the installation method of the clamping bolt 7 is the same as that of the aforementioned positioning pin 6, and the installation position of the clamping bolt 7 is located near the top of the second support block 52. By passing the clamping bolt 7 through the installation hole on the second support block 52, one end of the clamping bolt 7 can be abutted against the other end of the workpiece 4 to be processed. In this way, through the mutual cooperation of the clamping bolt 7 and the positioning pin 6, precise axial positioning of the workpiece 4 to be processed can be achieved.

[0050] A pressure plate 8 is connected to the fixture base 1 through a plurality of adjustable support columns, wherein the V-shaped block 2 and the pressure plate 8 radially position the workpiece 4 to be processed, and the positioning pin 6 and the clamping bolt 7 axially position the workpiece 4 to be processed.

[0051] Furthermore, the fixture base 1, the pressing plate 8, and the V-shaped block 2 have the same central axis.

[0052] Furthermore, the fixture base 1, the pressing plate 8, and the V-shaped block 2 have the same central axis.

[0053] Specifically, the pressure plate 8 is connected to the fixture base 1 through a plurality of adjustable support columns, and a through hole is provided at the center of the pressure plate 8. When it is necessary to process vertical screw holes on a cylinder, it can be achieved by means of the special fixture in this embodiment. The fixture includes three major parts: a fixture base 1, a V-shaped block 2 and a pressure plate 8. Therefore, it is necessary to ensure that the fixture base 1, the pressure plate 8 and the V-shaped block 2 have the same central axis. Furthermore, the V-shaped block 2 and the pressure plate 8 are connected with the lathe tapered hole by utilizing the Morse No. 6 taper, and the cylindrical workpiece is radially positioned. The locating pin 6 and the clamping bolt 7 are precisely positioned axially for the cylindrical workpiece, and a clamping mechanism is provided between the fixture base 1 and the pressure plate 8. The processing of the vertical trapezoidal threaded hole on the workpiece is completed by clamping once on an ordinary lathe or a CNC lathe (such as Figure 5 Trapezoidal screw holes as shown). This ensures the machining accuracy of the workpiece, thereby improving production efficiency, and ultimately bringing economic benefits to the enterprise and reducing costs.

[0054] Furthermore, the clamp device also includes: a plurality of first support column bases 101, which are fixedly disposed on the pressure plate 8; and a plurality of second support column bases 102, which are fixedly disposed on the second part 12 of the clamp base 1.

[0055] Specifically, the support column base is a component in the clamp device that provides bottom mounting support for multiple adjustable support columns, wherein multiple first support column bases 101 are fixedly mounted on the pressure plate 8, and multiple second support column bases 102 are fixedly mounted on the second part 12 of the clamp base 1, and then multiple adjustable support columns can be correspondingly mounted on the multiple first support column bases 101 and the multiple second support column bases 102.

[0056] Furthermore, the multiple adjustable support columns include: multiple first adjustable support columns 91, the first ends of the multiple first adjustable support columns 91 are fixedly connected to the second part 12 of the clamp base 1 through the second connecting member 911, and the second ends of the multiple first adjustable support columns 91 are rotatably connected to the pressure plate 8 through the third connecting member 912 and the multiple first support column bases 101; multiple second adjustable support columns 92, the first ends of the multiple second adjustable support columns 92 are connected to the pressure plate 8 through the fourth connecting member 921, and the second ends of the multiple second adjustable support columns 92 are rotatably connected to the second part 12 of the clamp base 1 through the fifth connecting member 922 and the multiple second support column bases 102.

[0057] Specifically, if Fig.11 , 12As shown in Figures 1 and 13, the multiple adjustable support columns include multiple first adjustable support columns 91 and multiple second adjustable support columns 92, and the multiple first adjustable support columns 91 and the multiple second adjustable support columns 92 are installed between the pressing plate 8 and the second part 12 of the clamp base 1. Specifically: one end of the multiple first adjustable support columns 91 is fixedly connected to the second part 12 of the clamp base 1 through the second connecting member 911, and the other end is rotatably connected to the pressing plate 8 through the third connecting member 912 and the multiple first support column bases 101; one end of the multiple second adjustable support columns 92 is connected to the pressing plate 8 through the fourth connecting member 921, and the other end is rotatably connected to the second part 12 of the clamp base 1 through the fifth connecting member 922 and the multiple second support column bases 102.

[0058] Furthermore, the second connecting member 911 and the fourth connecting member 921 are both nuts, and washers 13 are installed at the connection between the second connecting member 912 and the second portion 12 and at the connection between the fourth connecting member 921 and the pressure plate 8.

[0059] Furthermore, the third connecting member 912 and the fifth connecting member 922 are both turn pins.

[0060] Furthermore, the number of the plurality of first support column bases 101, the plurality of second support column bases 102, the plurality of first adjustable support columns 91, and the plurality of second adjustable support columns 92 is at least two.

[0061] Specifically, in this embodiment, the second connecting member 911 and the fourth connecting member 921 are both nuts, and the third connecting member 912 and the fifth connecting member 922 are both turn pins, which are preferred. The specific configuration can also be made according to the actual situation, and no specific restrictions are made in this embodiment. Washers 13 are installed at the connection between the second connecting member 912 and the second part 12, and at the connection between the fourth connecting member 921 and the pressure plate 8. Furthermore, in this embodiment, the number of the multiple first support column bases 101, the multiple second support column bases 102, the multiple first adjustable support columns 91, and the multiple second adjustable support columns 92 is at least two, which can also be made according to the actual situation, and no specific restrictions are made in this embodiment.

[0062] Furthermore, the main working principle of the fixture device is as follows: first, remove the chuck on the lathe, clamp the outer circle of the fixture with a Morse taper of No. 6 into the spindle taper hole of the lathe with standard precision, and fix the fixture to the spindle with an M20 pull rod. After completing the correction and verification of the fixture, install the standard rod into the φ22 hole of the V-block 2. Adjust the adjustable locating pin and measure it with a gauge block so that the distance from its end point to the center line of the φ22 hole of the V-block 2 is 40±0.01mm. After the accuracy is adjusted in place, fix the locating pin 6 with a nut. On the basis of ensuring the form and position tolerance accuracy of the fixture base 1 and the V-block 2, the V-block 2 and the pressure plate 8 radially position the workpiece, and the adjustable locating pin 6 and the clamping bolt 7 axially position the workpiece according to the requirements of the drawing. The pressure plate 8 clamps the workpiece 4 to be processed, tightens the nut, and then processes the trapezoidal threaded hole.

[0063] The installation of the fixture is a conventional process. However, after the installation is completed, the top surface of the V-shaped block 2 must be tested for parallelism based on the φ170 plane. If the error exceeds 0.005mm, it must be reinstalled.

[0064] For the clamping and calibration of the fixture, remove the chuck on the lathe, clamp the outer circle of the fixture with a Morse taper of No. 6 into the spindle taper hole of the lathe with standard precision, and fix the fixture on the spindle with an M20 pull rod. Manually rotate the spindle and check the dial gauge positions 1 and 2. The runout readings are within the range of 0.005mm. Then move the middle slide of the lathe, and fine-tune the rotating spindle to calibrate the side of the V-shaped block 2 at the dial gauge position 3. After determining that the runout reading of the dial gauge is within the range of 0.01mm, the spindle must not be rotated again. Move the middle slide of the lathe and check the V-shaped surface of the V-shaped block 2 at the dial gauge positions 4 and 5. The runout readings are within the range of 0.01mm. Rotate the spindle 180°. Calibrate the other side of the V-shaped block 2 at the dial gauge position 3 again, and repeat the check of the V-shaped surface of the V-shaped block 2 at the dial gauge positions 4 and 5. If the runout reading is found to be beyond the range of 0.01mm, the fixture must be reworked.

[0065] After completing the calibration and checking of the fixture, install the standard rod into the φ22 hole of the V-shaped block 2. Adjust the adjustable positioning pin 6 and measure with a gauge block so that the distance from its end point to the center line of the φ22 hole of the V-shaped block 2 is 40±0.01mm. Finally, install the fixture and workpiece and conduct a test run. Fig.10 shown.

[0066] Therefore, through the fixture device in this embodiment, the machining accuracy of the workpiece can be stably guaranteed, and the form and position tolerance accuracy of the vertical screw hole of the workpiece, that is, the position of the workpiece relative to the tool and the machine tool is guaranteed by the fixture; the labor productivity is improved, and it is convenient and fast. The operator does not need to correct the workpiece, and the auxiliary working hours can be significantly reduced. After the workpiece is clamped in the fixture, the rigidity of the workpiece is improved, so the cutting amount can be increased, and the labor productivity is improved; the cost is reduced, and the fixture can be used on ordinary lathes or economical CNC lathes without the need to purchase high-precision machine tools; in batch production, workers with lower technical levels can also be appropriately used; and due to the improvement of labor productivity, the technical effect of the reduction of scrap rate. It can be seen that the fixture can significantly reduce production costs. The larger the batch of workpieces, the more significant the economic benefits achieved.

[0067] The above one or more technical solutions in the embodiments of the present utility model have at least one or more of the following technical effects:

[0068] A fixture device for vertical screw hole processing provided in an embodiment of the utility model is installed on a lathe, and the fixture device includes: a fixture base, a V-shaped block, a first support block, a second support block, a positioning pin, a clamping bolt, and a pressure plate. Specifically: the fixture base includes a first part and a second part, wherein the second part is located above the first part and the second part is fixedly connected to the first part; the V-shaped block is arranged at a first position on the table of the second part, and the V-shaped block is connected to the second part through a plurality of first connecting members, wherein the V-shaped block can accommodate a workpiece to be processed; the first support block and the second support block are respectively arranged at positions on opposite sides of the V-shaped block, wherein mounting holes are provided on the first support block and the second support block; the positioning pin is arranged at a position near the top of the first support block, and the positioning pin passes through the mounting hole on the first support block to position the workpiece to be processed; the clamping bolt is arranged near the second support block The clamping mechanism is arranged between the clamp base and the clamping plate, thereby solving the problem that it is difficult to achieve high shape and position tolerance accuracy requirements by marking for workpieces that need to be processed with vertical screw holes in the prior art. In addition, the CNC lathe cannot process the workpiece by one clamping operation, and there are also precision errors caused by repeated positioning during multiple clamping operations. Both of these problems have technical problems of low work efficiency and high cost, thereby achieving the technical effect of ensuring high processing accuracy of shape and position tolerance of workpieces, improving processing and production efficiency, reducing costs, and facilitating operation.

[0069] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0070] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A fixture device for vertical screw hole processing, the fixture device is installed on a lathe, characterized in that: The clamp device comprises: A fixture base, the fixture base comprising a first part and a second part, wherein the second part is located above the first part and the second part is fixedly connected to the first part; A V-shaped block, the V-shaped block is arranged at a first position on the table surface of the second part, and the V-shaped block is connected to the second part through a plurality of first connecting members, wherein the V-shaped block can accommodate a workpiece to be processed; A first support block and a second support block, wherein the first support block and the second support block are respectively arranged at two opposite sides of the V-shaped block, wherein the first support block and the second support block are both provided with mounting holes; A positioning pin, wherein the positioning pin is arranged at a position close to the upper part of the first supporting block, and the positioning pin passes through a mounting hole on the first supporting block to position the workpiece to be processed; A clamping bolt, which is arranged at a position close to the upper part of the second supporting block, and passes through a mounting hole on the second supporting block to clamp the workpiece to be processed; A pressure plate, wherein the pressure plate is connected to the fixture base through a plurality of adjustable support columns, wherein the V-shaped block and the pressure plate radially position the workpiece to be processed, and the positioning pin and the clamping bolt axially position the workpiece to be processed.

2. The fixture device for vertical screw hole processing according to claim 1, characterized in that: The clamp device also includes: A plurality of first support column bases, wherein the plurality of first support column bases are fixedly arranged on the pressing plate; A plurality of second support column bases are fixedly disposed on the second portion of the fixture base.

3. The fixture device for vertical screw hole processing according to claim 2, characterized in that: The plurality of adjustable support columns include: A plurality of first adjustable support columns, wherein the first ends of the plurality of first adjustable support columns are fixedly connected to the second portion of the clamp base via a second connecting member, and the second ends of the plurality of first adjustable support columns are rotatably connected to the pressing plate via a third connecting member and the plurality of first support column bases; A plurality of second adjustable support columns, wherein the first ends of the plurality of second adjustable support columns are connected to the pressure plate via a fourth connecting member, and the second ends of the plurality of second adjustable support columns are rotatably connected to the second part of the clamp base via a fifth connecting member and a plurality of second support column bases.

4. The fixture device for vertical screw hole processing according to claim 3 is characterized in that: The second connecting member and the fourth connecting member are both nuts, and washers are installed at the connection between the second connecting member and the second part and at the connection between the fourth connecting member and the pressure plate.

5. The fixture device for vertical screw hole processing according to claim 3, characterized in that: The third connecting member and the fifth connecting member are both turn pins.

6. The fixture device for vertical screw hole processing according to claim 1, characterized in that: The first connecting member is a screw.

7. The fixture device for vertical screw hole processing according to claim 1, characterized in that: The V-shaped block is provided with a V-shaped surface, and the V-shaped surface is arranged to face upward.

8. The fixture device for vertical screw hole processing according to claim 7, characterized in that: The included angle of the V-shaped surface is 90°.

9. The fixture device for vertical screw hole processing according to claim 1, characterized in that: The fixture base, the pressure plate and the V-shaped block have the same central axis.

10. The fixture device for vertical screw hole processing according to claim 3, characterized in that: The number of the plurality of first support column bases, the plurality of second support column bases, the plurality of first adjustable support columns, and the plurality of second adjustable support columns is at least two.

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