Gear positioning tool

Abstract

The utility model relates to the technical field of gear machining, in particular to a gear positioning tool, which is characterized in that a calibration tool assembly is arranged on a machine tool machining platform, two groups of self-adaptive locking mechanisms are arranged in the calibration tool assembly at equal intervals, and guide marks of workpieces to be punched with teeth are pressed at equal intervals by combining an angular depth gauge pair. When the machine tool tooth punching assembly descends towards the two workpieces to be punched along the gaps of the workpieces to be punched, the angular depth gauge can assist the tooth punching workpieces, so that the tooth punching precision of the double gears is effectively guaranteed, and meanwhile, the defects that a single gear needs to punch teeth gradually and measurement is carried out for multiple times are overcome. Comprising two workpieces to be subjected to tooth punching, two sets of self-adaptive locking mechanisms used for clamping the two workpieces to be subjected to tooth punching and a calibration tool assembly used for controlling the distance between the two sets of self-adaptive locking mechanisms. The self-adaptive locking mechanism comprises a base, a plurality of plug pins installed in the base and a locking assembly arranged in the base.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to a gear positioning tool. Background Art

[0002] The datum for gear positioning is the datum used to determine the correct position of the workpiece to be processed in the machine tool or fixture during the machining process, and the selection of positioning datum is divided into two types: inner hole positioning and end face positioning.

[0003] At present, the inner hole positioning method is mainly used to punch the positioning teeth of a single workpiece. However, the workpiece after punching needs to be processed indirectly and multiple times. The gears after initial processing need to be frequently meshed and tested with the comparison gears. At the same time, the clearance between the tooth mouth and the inner hole axis needs to be measured multiple times with a dial indicator. This is time-consuming and labor-intensive, and the accuracy of the double gear meshing is difficult to guarantee.

[0004] In view of this, a gear positioning tool was designed to solve the above problems. Utility Model Content

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] To this end, the technical solution adopted in this utility model is:

[0007] A gear positioning tool comprises two workpieces to be punched, two sets of adaptive locking mechanisms for clamping the two workpieces to be punched, and a calibration tool assembly for controlling the spacing between the two sets of adaptive locking mechanisms; the adaptive locking mechanism comprises a base, a plurality of latches installed in the base, and a locking assembly arranged in the base; the calibration tool assembly comprises a base arranged on a machine tool worktable, four limiting beams installed on the base, a first support movably installed on two of the limiting beams, and a second support movably installed on the other two limiting beams; the first support is arranged at the bottom of one of the bases, and the second support is arranged at the bottom of the other base.

[0008] In a preferred example, the present invention can be further configured as follows: the base is in a T-shaped structure as a whole, and a nut is provided on the threaded section at the bottom of the base;

[0009] A cylindrical socket is provided on the top of the base, and a plurality of the latches are arranged in the socket.

[0010] In a preferred example, the present invention can be further configured as follows: the adaptive locking mechanism also includes a spring arranged on the locking assembly, a pad connected to the top of the spring, a pressure-bearing member arranged on the top of the pad, and an extended stud movably installed in the pressure-bearing member.

[0011] In a preferred example, the present invention can be further configured as follows: the locking assembly includes a column plugged into a plurality of latches and located in a socket, and a clamp movably mounted on the column;

[0012] A plurality of evenly distributed vertical slots are provided inside the column, and a shaft is provided in the vertical slot, a bottom pressure plate is movably mounted on the shaft, and a top support plate is movably mounted on the other end of the bottom pressure plate;

[0013] The other end of the supporting plate is movably mounted on the clamping head at the bottom of the clamping head.

[0014] In a preferred embodiment, the present invention can be further configured as follows: a threaded hole is provided inside the column, and the extended stud is adapted to pass through the threaded hole;

[0015] The clamping head at the bottom of the clamping head is adapted to be clamped in the vertical slot of the column.

[0016] In a preferred example, the present invention can be further configured as follows: the base is composed of an I-shaped pad, two vertical rods and a column head, and an angle depth ruler is provided in the I-shaped pad;

[0017] The two sets of scale end plates at both ends of the angle depth gauge are respectively attached to the top surfaces of two workpieces to be punched.

[0018] In a preferred embodiment, the present invention can be further configured as follows: the first supporting member and the second supporting member are both provided with through holes adapted to fit the limiting beams;

[0019] A cross bar, two tension springs arranged on the cross bar and a locking bolt arranged in the end plates are arranged in the two end plates of the first bracket and the second bracket at adjacent ends.

[0020] In a preferred example, the present invention can be further configured as follows: the base, the first bracket and the second bracket are all made of stainless steel.

[0021] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0022] 1. The utility model sets a calibration fixture assembly on the machine tool processing platform, and sets two sets of adaptive locking mechanisms arranged at equal intervals in the calibration fixture assembly, and uses an angular depth gauge to press the guide marks of the workpiece to be punched at equal intervals. As the machine tool punching assembly descends along the gap between the workpieces to be punched toward the two workpieces to be punched, the angular depth gauge can assist in punching the workpieces, thereby effectively ensuring the accuracy of double gear punching, while avoiding the disadvantages of gradual punching of single gears and multiple measurements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the present invention when in use;

[0024] Figure 2 A schematic diagram of the calibration fixture assembly of the present invention;

[0025] Figure 3 For this utility model Figure 2 A magnified schematic diagram of point A in the middle;

[0026] Figure 4 is a schematic diagram of the adaptive locking mechanism of the utility model;

[0027] Figure 5 For this utility model Figure 4 Explosion diagram of

[0028] Figure 6 For this utility model Figure 5 Enlarged schematic diagram of point B in the middle.

[0029] Reference numerals:

[0030] 100. Workpiece to be punched;

[0031] 200, adaptive locking mechanism; 210, base; 220, nut; 230, latch; 240, locking assembly; 241, column; 242, chuck; 243, shaft; 244, bottom pressure plate; 245, top support plate; 250, spring; 260, gasket; 270, extended stud; 280, pressure-bearing member;

[0032] 300. Calibration tool assembly; 310. Base; 320. Limiting beam; 330. Angle depth gauge; 340. First support; 350. Second support; 360. Crossbar; 370. Tension spring; 380. Locking bolt. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0034] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0035] The following describes a gear positioning tool provided by some embodiments of the present invention in conjunction with the accompanying drawings. Example 1

[0036] Combine Figures 1-6As shown, the present invention provides a gear positioning tool, including two workpieces 100 to be punched, two sets of adaptive locking mechanisms 200 for clamping the two workpieces 100 to be punched, and a calibration tool assembly 300 for controlling the spacing between the two sets of adaptive locking mechanisms 200. The adaptive locking mechanism 200 is used to quickly position and calibrate workpieces of different sizes, and the calibration tool assembly 300 is used to provide an equidistant bearing platform for the two sets of adaptive locking mechanisms 200 after positioning and calibrating the workpieces.

[0037] The adaptive locking mechanism 200 includes a base 210, a plurality of latches 230 mounted in the base 210, a locking assembly 240 disposed in the base 210, a spring 250 disposed on the locking assembly 240, a pad 260 connected to the top of the spring 250, a pressure member 280 disposed on the top of the pad 260, and an extended stud 270 movably mounted in the pressure member 280.

[0038] The locking assembly 240 includes a column 241 inserted into the plurality of latches 230 and located in the insertion hole, and a clamp 242 movably mounted on the column 241;

[0039] The interior of the column 241 is provided with a plurality of evenly distributed vertical slots, and a shaft 243 is provided in the vertical slot. A bottom pressure plate 244 is movably mounted on the shaft 243, and a top support plate 245 is movably mounted on the other end of the bottom pressure plate 244.

[0040] The other end of the top support plate 245 is movably mounted on the chuck at the bottom of the chuck 242;

[0041] The calibration fixture assembly 300 includes a base 310 disposed on a machine tool workbench, four position-limiting beams 320 mounted on the base 310, a first bracket 340 movably mounted on two of the position-limiting beams 320, and a second bracket 350 movably mounted on the other two position-limiting beams 320.

[0042] The first bracket 340 is disposed at the bottom of one of the bases 210 , and the second bracket 350 is disposed at the bottom of the other base 210 .

[0043] The end face positioning method requires the use of two or more fixtures to clamp the workpiece at multiple angles. However, this method has many disadvantages. Each workpiece needs to be calibrated for a long time, and the subsequent processing of each workpiece requires tedious calibration and positioning in the above method, which has low production efficiency. Different from the end face positioning, the internal hole positioning clamping method is more accurate and convenient. However, the internal hole positioning requires gradual processing and multiple measurements for the punching of a single workpiece. In order to ensure the fit between the tooth mouth of the workpiece and the comparison gear after processing, the tedious inspection will also increase the working time.

[0044] The positioning fixture is provided with a base 310 fixed on the machine tool platform as a bearing base, and four limiting beams 320 are installed on the base 310. When the first support 340 and the second support 350 are respectively movably installed on the two adjacent limiting beams 320, the first support 340 and the second support 350 that can be extended at equal intervals can provide a stable carrier for the two sets of adaptive locking mechanisms 200. When two workpieces 100 to be punched with the same specifications are positioned and clamped by the two sets of adaptive locking mechanisms 200, the two workpieces 100 to be punched with the two sets of adaptive locking mechanisms 200 in the first support 340 and the second support 350 can be carried along the bottom of the angle depth ruler 330 for equal interval adjustment. Finally, the tooth punching assembly in the machine tool can perform precise depth punching processing on the two workpieces 100 to be punched along the gap of the angle depth ruler 330, thereby effectively ensuring the accuracy of the punching of the two workpieces 100 to be punched with the same specifications. Example 2

[0045] Combine Figure 4-Figure 6 As shown, based on Example 1, the base 210 is in a T-shaped structure as a whole, and a nut 220 is provided on the threaded section at the bottom of the base 210;

[0046] A cylindrical socket is formed at the top of the base 210 , and a plurality of pins 230 are evenly distributed in the socket.

[0047] Preferably, the nut 220 can be pressed against the bottom of the first bracket 340 or the second bracket 350 through a gasket. The gasket serves as a carrier of the nut 220. As the nut 220 progresses along the threaded section at the bottom of the base 210, the gasket can be pressed against the first bracket 340 and the second bracket 350. At this time, the two bases 210 can be arranged at equal intervals in the first bracket 340 and the second bracket 350.

[0048] A threaded hole is formed inside the column 241, and the extended stud 270 is adapted to pass through the threaded hole;

[0049] The clamping head at the bottom of the clamping head 242 is adapted to be clamped in the vertical slot of the column 241 .

[0050] Preferably, the column 241 is made of stainless steel, and the cylindrical end at the bottom of the column 241 is used to provide stabilizing constraints for the inner hole of the workpiece 100 to be punched. According to the inner hole width of different workpieces, a sleeve for tightening can be added to the cylindrical end at the bottom of the column 241, and multiple sleeves can be used to connect the inner holes of different workpieces, thereby improving the adaptability of the positioning tool to different workpieces. Example 3

[0051] Combine Figure 2-Figure 5As shown, in the above embodiment, the base 310 is composed of an I-shaped pad, two vertical rods and a column head, and an angle depth ruler 330 is set in the I-shaped pad;

[0052] The two sets of scale end plates at both ends of the angle depth ruler 330 are respectively attached to the top surfaces of the two workpieces 100 to be punched.

[0053] Preferably, the column head inside the base 310 can be opened with evenly distributed vertical holes according to the style of the machine tool workbench, and the column head can be fixed to the workbench by bolts, wherein the length of the two vertical rods needs to be set according to the length of the threaded section at the bottom of the base 210.

[0054] The first support member 340 and the second support member 350 are both provided with through holes adapted to fit the limiting beam 320;

[0055] A crossbar 360 is provided in two end plates at adjacent ends of the first bracket 340 and the second bracket 350 , two tension springs 370 are provided on the crossbar 360 , and a locking bolt 380 is provided in the end plates;

[0056] The base 210 , the first bracket 340 , and the second bracket 350 are all made of stainless steel.

[0057] Preferably, one end of one of the tension springs 370 is fixedly mounted on an end plate of the first bracket 340, and the other end of the tension spring 370 is fixed on the cross bar 360. Similarly, another tension spring 370 provided on the other end of the cross bar 360 is also fixedly connected to an end plate in the second bracket 350.

[0058] The scale end plates at both ends of the depth ruler 330 can also provide spacing indications for the extension of the first bracket 340 and the second bracket 350 .

[0059] The working principle and use process of the present invention are as follows: when a circular workpiece needs to be punched until a gear structure is formed, the circular workpiece to be processed needs to be positioned along the hole or end face of its axis using a special positioning tool, and today's positioning tooling is mainly divided into axis, double-sided and multi-sided clamping methods, but the above three methods still have certain defects in the workpiece punching operation. After the single gear is positioned and clamped, the workpiece after punching needs to be further inspected after the punching equipment is stopped. The workpiece and the fixture core shaft are positioned along the outer circle and the end face using a dial indicator for multiple measurements. Therefore, the cycle time spent on punching the workpiece will increase, and it is difficult to ensure the accuracy of the double gear meshing after the workpiece is punched.

[0060] Therefore, the tooling uses studs and nuts to fix the base 310 on the work surface, then sets two sets of adaptive locking mechanisms 200 in the transverse grooves inside the first bracket 340 and the second bracket 350 respectively, and uses two nuts 220 to selectively fix the two bases 210 in the first bracket 340 and the second bracket 350 until the two bases 210 are symmetrically distributed. The two workpieces 100 to be punched, which are pressed outside the two sets of locking components 240, can be pre-assembled at a precise spacing before punching.

[0061] When the two workpieces 100 to be punched are large in size, the four pressure-bearing members 280 can be loosened, and then the first support member 340 and the second support member 350 are extended outward along the outside of the two sets of limiting beams 320 until the two sets of adaptive locking mechanisms 200 are expanded outward at equal intervals. In conjunction with the marks of the angle depth gauge 330, when the two clamped workpieces 100 to be punched are extended outward to a constant distance, the four locking bolts 380 can be tightened. At this time, the rectangular gaps exposed at both ends of the angle depth gauge 330 can provide guidance for the punching workpieces. At this time, the angle depth gauge 330 attached to the surfaces of the two workpieces 100 to be punched can provide observable marks for the accuracy of the tooth opening after guiding the punching.

[0062] When the teeth are punched, the extended stud 270 can be unscrewed counterclockwise, and then the chuck 242 can be stretched upward along the column 241. At this time, the top support plate 245 and the bottom pressure plate 244 can be retracted into the vertical groove inside the column 241, and then the two workpieces 100 to be punched can be quickly taken out after the teeth are punched.

[0063] In this utility model, the term "plurality" refers to two or more, unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items. Terms such as "install," "connect," "connect," and "fix" should be understood broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0064] It should be noted that when an element is referred to as being "assembled to," "mounted to," "fixed to," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0065] Throughout this specification, terms such as "one embodiment," "some embodiments," or "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0066] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gear positioning tool, comprising two workpieces (100) to be punched, characterized in that: It also includes two sets of adaptive locking mechanisms (200) for clamping two workpieces (100) to be punched, and a calibration tool assembly (300) for controlling the distance between the two sets of adaptive locking mechanisms (200); The adaptive locking mechanism (200) comprises a base (210), a plurality of latches (230) installed in the base (210), and a locking assembly (240) disposed in the base (210); The calibration tool assembly (300) comprises a base (310) arranged on a machine tool workbench, four position-limiting beams (320) mounted on the base (310), a first support (340) movably mounted on two of the position-limiting beams (320), and a second support (350) movably mounted on the other two position-limiting beams (320); The first supporting member (340) is arranged at the bottom of one of the bases (210), and the second supporting member (350) is arranged at the bottom of the other base (210).

2. A gear positioning tool according to claim 1, characterized in that: The base (210) is in a T-shaped structure as a whole, and a nut (220) is provided on the threaded section at the bottom of the base (210); A cylindrical socket is provided at the top of the base (210), and a plurality of the latches (230) are evenly distributed in the socket.

3. The gear positioning tool according to claim 1, characterized in that: The adaptive locking mechanism (200) further includes a spring (250) arranged on the locking assembly (240), a cushion (260) connected to the top of the spring (250), a pressure-bearing member (280) arranged on the top of the cushion (260), and an extended stud (270) movably mounted in the pressure-bearing member (280).

4. The gear positioning tool according to claim 1, characterized in that: The locking assembly (240) includes a column (241) plugged onto a plurality of latches (230) and located in a socket, and a clamp (242) movably mounted on the column (241); The interior of the column (241) is provided with a plurality of evenly distributed vertical slots, and a shaft (243) is provided in the vertical slot. A bottom pressure plate (244) is movably mounted on the shaft (243), and a top support plate (245) is movably mounted on the other end of the bottom pressure plate (244). The other end of the supporting plate (245) is movably mounted on the chuck at the bottom of the chuck (242).

5. The gear positioning tool according to claim 4, characterized in that: A threaded hole is provided inside the column (241), and the extended stud (270) is adapted to penetrate through the threaded hole; The clamping adapter at the bottom of the clamping head (242) is clamped in the vertical groove of the column (241).

6. The gear positioning tool according to claim 1, characterized in that: The base (310) is composed of an I-shaped pad, two vertical rods and a column head, and an angle depth ruler (330) is provided in the I-shaped pad; The two sets of scale end plates at both ends of the angle depth gauge (330) are respectively attached to the top surfaces of two workpieces (100) to be punched.

7. The gear positioning tool according to claim 1, characterized in that: The first supporting member (340) and the second supporting member (350) are both provided with through holes adapted to fit the limiting beam (320); A crossbar (360), two tension springs (370) arranged on the crossbar (360), and a locking bolt (380) arranged in the end plates are provided in the two end plates at the adjacent ends of the first bracket (340) and the second bracket (350).

8. The gear positioning tool according to claim 1, characterized in that: The base (210), the first support (340) and the second support (350) are all made of stainless steel.

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