External spline stamping forming tool

Abstract

The utility model discloses an external spline stamping forming tool, which relates to the technical field of stamping, and comprises a fixed seat, a lower die frame is arranged at the top of the fixed seat, guide columns are arranged at four corners of the top of the lower die frame, the lower die frame is connected with an upper die frame through the guide columns, the top of the lower die frame is detachably connected with a die core, and the upper die frame is connected with a lower die frame through the guide columns. The upper die frame is provided with a die core, the top of the die core is provided with a workpiece placing groove, the upper die frame is detachably connected with a punch, the punch corresponds to the workpiece placing groove in position, and the bottom end of the punch is provided with an internal spline structure; a sliding groove is formed in the top of the lower mold frame, the mold core can be embedded in the sliding groove in a sliding mode, the end of the mold core is bent towards the two sides of the mold core to form fixing ends, and through holes penetrating through the fixing ends are formed in the side surfaces of the fixing ends; the male spline stamping forming tool is extremely high in universality and suitable for male spline stamping forming of spline workpieces of different sizes or different shapes.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping, in particular to an external spline stamping forming tool. Background Art

[0002] With the deepening of reform and the improvement of national economy and people's living standards, China has gradually transformed from a major bicycle country to a major automobile country. After decades of development, the technical level of my country's internal combustion engine and electrical machinery industry has made great progress. However, compared with foreign advanced technology, there is still a large gap, which is mainly manifested in backward equipment technology and low processing automation capability. Milling is mostly used in the processing of external spline grooves, which has low production efficiency and low processing accuracy.

[0003] Therefore, the prior art proposes a Chinese patent with announcement number CN207746305U, "A mold device for stamping external spline grooves". The device has a simple structure and a reasonable design, can improve processing efficiency and reduce processing costs, and stamps the workpiece through a punch with an external spline module, replacing the traditional milling process and improving the processing efficiency of the workpiece; but for external spline grooves or external splines, for splines of different sizes or different shapes, the above patent only allows stamping of splines of a single size or shape. Therefore, it is necessary to propose an improved technical solution to solve the above problem. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] An external spline stamping tooling comprises a fixed seat, a lower die frame is arranged on the top of the fixed seat, guide pillars are arranged at the four corners of the top of the lower die frame, and an upper die frame is connected through the guide pillars, a die core is detachably connected to the top of the lower die frame, and a workpiece placement groove is arranged on the top of the die core, a punch is detachably connected to the upper die frame, and the punch corresponds to the position of the workpiece placement groove, wherein the bottom end of the punch has an internal spline structure;

[0006] A slide groove is provided on the top of the lower mold frame, and the mold core can be slidably engaged in the slide groove, wherein the ends of the mold core are bent to form fixed ends on both sides thereof, and a through hole penetrating the fixed end is provided on the side surface of the fixed end, and a first mounting groove corresponding to the fixed end is provided at the position of the port of the slide groove, and the first mounting groove is connected to the slide groove, and a first threaded hole corresponding to the through hole is provided on the side wall of the first mounting groove;

[0007] The top of the upper mold frame is provided with a second mounting groove that runs through it, and the punch is placed in the second mounting groove, wherein a second threaded hole connected to the second mounting groove is provided on the side surface of the upper mold frame, and an abutment portion corresponding to the second threaded hole is recessed on the side wall corresponding to the punch.

[0008] As a further solution of the utility model: the second installation groove includes a horizontal groove and a vertical groove, and the groove width of the horizontal groove is greater than the groove width of the vertical groove, so that the horizontal groove and the vertical groove are connected to form a T shape;

[0009] The punch includes a horizontal portion corresponding to the horizontal groove and a vertical portion corresponding to the vertical groove, the bottom end of the vertical portion passes through the vertical groove and the internal spline structure is formed at the bottom end of the vertical portion, and the abutment portion is recessed on the side surface of the vertical portion.

[0010] As a further solution of the utility model: a slideway is provided at the central position along the top of the mold core, and the inner bottom surface of the slideway is provided with the workpiece placement groove;

[0011] The mold core is located on both sides of the slide groove to form a connecting portion, a guide groove is opened on the inner side of the connecting portion, and a push piece is slidably engaged through the guide groove, and the push piece is located above the workpiece placement groove.

[0012] As a further solution of the utility model: an arc groove acting on the workpiece is formed at one end of the push piece corresponding to the workpiece placement groove.

[0013] As a further solution of the utility model: a power piece is provided on the top of the fixed seat and at the end of the push piece away from the workpiece placement slot, and the output end of the power piece is dynamically connected to the end of the push piece away from the workpiece placement slot to drive the push piece to reciprocate horizontally along the guide slot.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1) A detachably connected die core is provided on the lower die frame, and a detachably connected punch is provided on the upper die frame, wherein a workpiece placement groove for positioning the corresponding workpiece is provided on the die core, thereby the spline workpieces of different sizes or shapes can be matched by replacing different die cores and the workpiece placement grooves thereon, and the corresponding external splines can be stamped and formed by synchronously replacing different punches and the internal spline structures thereon, thereby reflecting the strong versatility of the external spline stamping forming tooling, and being suitable for the external spline stamping forming of spline workpieces of different sizes or shapes;

[0016] 2) The mold core can be slidably engaged in the slide groove of the lower mold frame, and the mold core is positioned on the lower mold frame in combination with the fixed end of the mold core bent and formed in the first mounting groove, so that the mold core can be replaced and the workpiece placement groove thereon can be accurately matched with the punch, and the threaded connection between the through hole and the first threaded hole realizes a convenient and firm fixation method between the mold core and the lower mold frame; and the replacement of the punch can also be accurately positioned through the second mounting groove, and the second threaded hole and the abutment screw are abutted to realize a convenient and firm fixation method between the punch and the upper mold frame.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model after the mold core is removed;

[0021] Figure 3 It is a structural schematic diagram of the mold core of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the punch in the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model.

[0024] The reference numerals and names in the figures are as follows:

[0025] 1. Fixed seat; 2. Lower die frame; 3. Guide column; 4. Upper die frame; 5. Core; 6. Workpiece placement groove; 7. Punch; 8. Internal spline structure; 9. Slide groove; 10. Fixed end; 11. Through hole; 12. First mounting groove; 13. First threaded hole; 14. Second mounting groove; 15. Second threaded hole; 16. Abutment part; 17. Horizontal groove; 18. Vertical groove; 19. Horizontal part; 20. Vertical part; 21. Slideway; 22. Connecting part; 23. Guide groove; 24. Push piece; 25. Arc groove; 26. Workpiece. DETAILED DESCRIPTION

[0026] 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 in 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.

[0027] See also Figure 1-5 In the embodiment of the utility model, an external spline stamping forming tool comprises a fixed seat 1, a lower die frame 2 is arranged on the top of the fixed seat 1, guide pillars 3 are arranged at the four corners of the top of the lower die frame 2, and an upper die frame 4 is connected through the guide pillars 3, a die core 5 is detachably connected to the top of the lower die frame 2, and a workpiece placement groove 6 is arranged on the top of the die core 5, a punch 7 is detachably connected to the upper die frame 4, and the punch 7 corresponds to the position of the workpiece placement groove 6, wherein the bottom end of the punch 7 has an internal spline structure 8;

[0028] A slide groove 9 is provided on the top of the lower mold frame 2, and the mold core 5 can be slidably engaged in the slide groove 9, wherein the ends of the mold core 5 are bent to form fixed ends 10 on both sides thereof, and a through hole 11 penetrating the fixed end 10 is provided on the side surface of the fixed end 10, and a first mounting groove 12 corresponding to the fixed end 10 is provided at the position of the port of the slide groove 9, and the first mounting groove 12 is connected to the slide groove 9, and a first threaded hole 13 corresponding to the through hole 11 is provided on the side wall of the first mounting groove 12;

[0029] The top of the upper mold frame 4 is provided with a second mounting groove 14 which runs through the upper mold frame 4, and the punch 7 is placed in the second mounting groove 14, wherein a second threaded hole 15 which is connected to the second mounting groove 14 is provided on the side surface of the upper mold frame 4, and an abutment portion 16 corresponding to the second threaded hole 15 is recessed on the side wall corresponding to the punch 7.

[0030] In the technical solution of the utility model, a detachably connected die core 5 is provided on the lower die frame 2, and a detachably connected punch 7 is provided on the upper die frame 4, wherein the die core 5 is provided with a workpiece placement groove 6 for positioning the corresponding workpiece 26, thereby the spline workpieces 26 of different sizes or shapes can be matched by replacing different die cores 5 and the workpiece placement grooves 6 thereon, and the splines of different sizes or shapes can be matched, and the corresponding external splines can be stamped and formed by synchronously replacing different punches 7 and the internal spline structures 8 thereon, thereby reflecting the strong versatility of the external spline stamping and forming tooling, and is suitable for the external spline stamping and forming of spline workpieces 26 of different sizes or shapes;

[0031] Furthermore, the core 5 can be slidably engaged in the slide groove 9 of the lower mold frame 2, and at the same time, the fixed end 10 of the core 5 bent and formed cooperates with the first mounting groove 12 to realize the positioning of the core 5 on the lower mold frame 2, so that the replacement of the core 5 can also ensure that the workpiece placement groove 6 thereon accurately corresponds to the punch 7, and the threaded connection method between the through hole 11 and the first threaded hole 13 realizes a convenient and firm fixing method between the core 5 and the lower mold frame 2; and the replacement of the punch 7 can also be accurately positioned through the second mounting groove 14, and at the same time, the second threaded hole 15 and the abutment portion 16 are screwed together to realize a convenient and firm fixing method between the punch 7 and the upper mold frame 4.

[0032] The second threaded hole 15 can also be set as a through hole 11, and the corresponding abutment portion 16 can also be a threaded hole, so that the punch 7 and the upper mold frame 4 can be detachably connected by the cooperation of the through hole 11 and the threaded hole. The detachable connection method can also be other methods.

[0033] In the embodiment of the utility model, the second mounting groove 14 includes a transverse groove 17 and a vertical groove 18, and the groove width of the transverse groove 17 is greater than the groove width of the vertical groove 18, so that the transverse groove 17 and the vertical groove 18 are connected to form a T shape;

[0034] The punch 7 includes a transverse portion 19 corresponding to the transverse groove 17 and a vertical portion 20 corresponding to the vertical groove 18. The bottom end of the vertical portion 20 passes through the vertical groove 18 and the internal spline structure 8 is formed at the bottom end of the vertical portion 20. The abutment portion 16 is recessed on the side surface of the vertical portion 20.

[0035] The second mounting groove 14 is arranged in a T shape, so that when the punch 7 is placed in the second mounting groove 14 , the transverse groove 17 can provide a bearing force to the punch 7 , which is convenient for assembly and also conducive to the stability of the punch 7 in stamping.

[0036] In the embodiment of the utility model, a slideway 21 is provided at the central position along the top of the mold core 5, and the inner bottom surface of the slideway 21 is provided with the workpiece placement groove 6;

[0037] The mold core 5 is located on both sides of the slide groove 9 to form a connecting portion 22, a guide groove 23 is opened inside the connecting portion 22, and a push piece 24 is slidably engaged through the guide groove 23, and the push piece 24 is located above the workpiece placement groove 6;

[0038] The push piece 24 has an arc groove 25 at one end corresponding to the workpiece placement groove 6, which acts on the workpiece 26;

[0039] A power piece is provided at the top of the fixed seat 1 and at the end of the push piece 24 away from the workpiece placement slot 6, and the output end of the power piece is connected to the end of the push piece 24 away from the workpiece placement slot 6 to drive the push piece 24 to reciprocate horizontally along the guide slot 23;

[0040] By setting the push piece 24, especially placing the push piece 24 obliquely above the installation groove of the workpiece 26, that is, there is a certain spacing distance between the push piece and the installation groove of the workpiece 26, so that the installation groove of the workpiece 26 acts on the bottom of the workpiece 26 to achieve positioning, and the push piece 24 acts on the head of the workpiece 26 to achieve the pushing of the workpiece 26, which is beneficial to production efficiency and reduces the time for taking and placing the workpiece 26. The push piece 24 can accurately slide along the guide groove 23, and the setting of the arc groove 25 at the front end of the push piece 24 can match the punch 7 and achieve the giving way of the punch 7; wherein, the power part can be a cylinder, or it can be an electric push rod, etc.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. An external spline stamping tool, characterized in that: The invention comprises a fixing seat, a lower die frame is arranged on the top of the fixing seat, guide pillars are arranged at the four corners of the top of the lower die frame, and an upper die frame is connected through the guide pillars, a die core is detachably connected to the top of the lower die frame, and a workpiece placement groove is arranged on the top of the die core, a punch is detachably connected to the upper die frame, and the punch corresponds to the position of the workpiece placement groove, wherein the bottom end of the punch has an internal spline structure; A slide groove is provided on the top of the lower mold frame, and the mold core can be slidably engaged in the slide groove, wherein the ends of the mold core are bent to form fixed ends on both sides thereof, and a through hole penetrating the fixed end is provided on the side surface of the fixed end, and a first mounting groove corresponding to the fixed end is provided at the position of the port of the slide groove, and the first mounting groove is connected to the slide groove, and a first threaded hole corresponding to the through hole is provided on the side wall of the first mounting groove; The top of the upper mold frame is provided with a second mounting groove that runs through it, and the punch is placed in the second mounting groove, wherein a second threaded hole connected to the second mounting groove is provided on the side surface of the upper mold frame, and an abutment portion corresponding to the second threaded hole is recessed on the side wall corresponding to the punch.

2. The external spline stamping tool according to claim 1, characterized in that: The second mounting groove includes a transverse groove and a vertical groove, and the groove width of the transverse groove is greater than the groove width of the vertical groove, so that the transverse groove and the vertical groove are connected to form a T shape; The punch includes a horizontal portion corresponding to the horizontal groove and a vertical portion corresponding to the vertical groove, the bottom end of the vertical portion passes through the vertical groove and the internal spline structure is formed at the bottom end of the vertical portion, and the abutment portion is recessed on the side surface of the vertical portion.

3. The external spline stamping tool according to claim 1, characterized in that: A slideway is provided at the central position along the top of the mold core, and the inner bottom surface of the slideway is provided with the workpiece placement groove; The mold core is located on both sides of the slide groove to form a connecting portion, a guide groove is opened on the inner side of the connecting portion, and a push piece is slidably engaged through the guide groove, and the push piece is located above the workpiece placement groove.

4. The external spline stamping tool according to claim 3, characterized in that: An arc groove acting on the workpiece is formed at one end of the push piece corresponding to the workpiece placement groove.

5. The external spline stamping tool according to claim 3, characterized in that: A power piece is arranged on the top of the fixed seat and at the end of the push piece away from the workpiece placement slot, and the output end of the power piece is dynamically connected to the end of the push piece away from the workpiece placement slot to drive the push piece to reciprocate horizontally along the guide slot.

Images