Punching tool for connecting rod
By introducing measurement components and internal brace clamping components in the connecting rod punching tooling, the problems of shape in the prior art are solved, and the precise fixation and position determination of the connecting rod are achieved, avoiding material waste.
Patent Information
- Application Number
- CN202420761377.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing connecting rod punching positioning tooling cannot adapt to connecting rods of different shapes, resulting in deviation of the punching position, and the need for advance marking may lead to the disappearance or misalignment of the marking, resulting in waste of materials.
A drilling tool including measuring components and inner brace clamping components is designed, and the measurement and clamping are used to measure and clamp the components such as multi-position slide plates, scales, limit blocks, rack plates, gears, clamps and threaded rods are used to measure and clamp. The tightening mechanism enables precise fixation and position determination of the connecting rod.
Effective fixation of connecting rods of different shapes is achieved, avoiding deviation of the punching position, and ensuring the accuracy of the punching position through scales and limit blocks, avoiding material waste.
Smart Images
Figure CN222243883U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile engine connecting rod production and processing, and specifically relates to a connecting rod punching tool. Background Art
[0002] The automobile connecting rod is an important part in the automobile engine. Its main function is to connect the piston and the crankshaft. Its main function is to convert the reciprocating motion of the piston into the rotational motion of the crankshaft, and transmit the force acting on the piston to the crankshaft to output power. In order to reduce the wear between the piston pin and the connecting rod, a thin-walled bronze bushing is usually pressed in the small end hole of the connecting rod. In order to reduce the mass while maintaining sufficient strength and rigidity, the connecting rod body usually adopts an "I" or "H" shaped cross-section design.
[0003] The prior art discloses a connecting rod alignment punching and positioning tool (CN202123218859.4), including a support seat, an upper end of the support seat is provided with a boss that matches the strip hole of the connecting rod, the outer side surface of the boss is in contact with the inner side surface of the strip hole, and the height of the boss is the same as the height of the strip hole. Fixed plates are symmetrically provided at both ends of the support seat, and a support cylinder is provided at the upper end of the fixed plate. The two support cylinders are symmetrically distributed relative to the central axis of the support seat, and the upper end surface of the support cylinder and the upper surface of the support seat are located in the same horizontal plane. A rotating mechanism for controlling its rotation is provided at the center position of the lower surface of the support seat, and a bottom plate is provided below the rotating mechanism, and the bottom plate is fixed on the work table. The connecting rod alignment punching and positioning tool can effectively ensure the symmetry of the two hole positions on the connecting rod and improve the measurement accuracy of the flowmeter.
[0004] After searching, it was found that when the device is in use, the boss only fits the inner side of the connecting rod, and the two outer sides of the connecting rod are clamped and fixed by the L-shaped plates at both ends. This method has requirements for the shape of the connecting rod and cannot be adapted according to the shape of the connecting rod. This results in that connecting rods of different shapes cannot be effectively fixed, and deviation is easy to occur when punching holes. In addition, the existing device needs to determine the punching position in advance and then mark it. This makes it easy for the mark to be eliminated or misplaced, resulting in the wrong punching position, making the connecting rod unusable, and causing waste of materials.
[0005] In view of this, the present utility model is proposed. Utility Model Content
[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:
[0007] A punching tool for a connecting rod, comprising a base, above which are arranged a measuring component for marking the length of the connecting rod and an internal support clamping component for assisting in punching the connecting rod, the measuring component comprising a multi-position slide plate, a scale and a limit block, the multi-position slide plate is fixedly connected to the base, the scale is slidably connected to the multi-position slide plate, the limit block is elastically connected to the scale, and the limit block is movably connected to the multi-position slide plate; the internal support clamping component comprises a rack plate, a gear, a first clamping block, a threaded rod and a second clamping block, the gear is rotatably connected to the base, the rack plate, the first clamping block and the second clamping block are all slidably connected to the base, the rack plate and the gear are transmission-connected, the threaded rod is rotatably connected to the first clamping block, and the second clamping block is movably connected to the threaded rod.
[0008] As a preferred embodiment of the utility model, a handle is rotatably connected inside the base, a gear is fixedly connected to the top of the handle, two fixed columns are fixedly connected to the top of the base, the two fixed columns are symmetrically arranged with the gear as the symmetry point, a boss is fixedly connected to the top of the two fixed columns, the boss is located directly above the gear, and different holes are symmetrically opened at both ends of the boss.
[0009] As a preferred embodiment of the utility model, two rack plates are provided, the two rack plates are located on both sides of the gear, the two rack plates are meshed with the same gear, different inner support blocks are fixedly connected above the two rack plates, the two inner support blocks are symmetrical with the same gear, the rack plates and the inner support blocks are vertically distributed, and the two rack plates are slidably connected to the same base.
[0010] As a preferred embodiment of the utility model, a bracket is fixedly connected to the top of the base, the inside of the bracket is slidably connected to the first clamp block and the second clamp block, the first clamp block is fixedly connected to the threaded rod on one side close to the second clamp block, and the second clamp block is slidably connected to the threaded rod.
[0011] As a preferred embodiment of the present invention, a side of the second clamping block away from the first clamping block is rotatably connected to a threaded ring, and the threaded ring is threadedly connected to the threaded rod.
[0012] As a preferred embodiment of the utility model, the top surface of the bracket is fixedly connected to a multi-position slide plate, two of the multi-position slide plates are symmetrically arranged, a scale is slidably connected between the two multi-position slide plates, and one end of the scale is fixedly connected to a resistance plate for a limiting connecting rod.
[0013] As a preferred embodiment of the utility model, different springs are fixedly connected to both sides of the other end of the scale, and the two springs are fixedly connected to different limit blocks, and the two limit blocks are elastically connected to the same scale through different springs.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. The support block can adapt to the shape of the inside of the connecting rod and fix the connecting rod by means of support, while the first clamping block and the second clamping block adapt to the shape of the outside of the connecting rod by means of sliding clamping, thereby achieving effective fixation of the inside and outside of the connecting rod, thereby avoiding deviation of the drying position during drilling.
[0016] 2. Use a ruler and a resistance plate to measure the position of the connecting rod, and use the position of the arc-shaped mouth of the bracket to determine the length of the ruler. This not only avoids the disappearance of the mark, but also ensures the correct punching position with the help of accurate scales, thereby ensuring the use of the connecting rod and avoiding material waste.
[0017] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In the attached picture:
[0019] Figure 1 It is an overall schematic diagram of the utility model;
[0020] Figure 2 This is a schematic diagram of disassembly and assembly of the inner support clamping assembly of the utility model;
[0021] Figure 3 It is a partial schematic diagram of the inner support clamping assembly of the utility model;
[0022] Figure 4 It is a schematic diagram of the measuring component of the utility model;
[0023] Figure 5 It is a top view schematic diagram of the utility model.
[0024] In the figure: 10, base; 11, handle; 12, inner support block; 13, rack plate; 14, gear; 15, boss; 16, hole groove; 17, bracket; 18, first clamping block; 19, threaded rod; 20, threaded ring; 21, second clamping block; 22, multi-position slide plate; 23, scale; 24, resistance plate; 25, limit block; 26, spring. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.
[0026] A punching tool for a connecting rod, such as Figure 1 , Figure 2 , Figure 3, Figure 4 and Figure 5 As shown, it includes a base 10, and a measuring component for marking the length of the connecting rod and an inner support clamping component for assisting the connecting rod punching are arranged above the base 10. The measuring component includes a multi-position slide plate 22, a scale 23 and a limit block 25. The multi-position slide plate 22 is fixedly connected to the base 10, the scale 23 is slidably connected to the multi-position slide plate 22, the limit block 25 is elastically connected to the scale 23, and the limit block 25 is movably connected to the multi-position slide plate 22; the inner support clamping component includes a rack plate 13, a gear 14, a first clamping block 18, a threaded rod 19 and a second clamping block 21, the gear 14 is rotatably connected to the base 10, the rack plate 13, the first clamping block 18 and the second clamping block 21 are all slidably connected to the base 10, the rack plate 13 and the gear 14 are transmission-connected, the threaded rod 19 is rotatably connected to the first clamping block 18, and the second clamping block 21 is movably connected to the threaded rod 19; as shown Figure 1 and Figure 2 As shown, the base 10 is internally rotatably connected with a handle 11, the top of the handle 11 is fixedly connected with a gear 14, the top of the base 10 is fixedly connected with two fixing columns, the two fixing columns are symmetrically arranged with the gear 14 as a symmetry point, and the top of the two fixing columns is fixedly connected with a boss 15, the boss 15 is located just above the gear 14, and different holes 16 are symmetrically opened at both ends of the boss 15; Figure 2 As shown, two rack plates 13 are provided, the two rack plates 13 are located on both sides of the gear 14, the two rack plates 13 are meshed with the same gear 14, different inner support blocks 12 are fixedly connected above the two rack plates 13, the two inner support blocks 12 are symmetrical with the same gear 14, the rack plates 13 and the inner support blocks 12 are vertically distributed, and the two rack plates 13 are slidably connected to the same base 10.
[0027] The working principle is as follows: a rotating hole is provided at the center of the base 10, and a bearing is arranged in the rotating hole. A cylinder is rotatably connected to the rotating hole through the bearing. The top of the cylinder is fixedly connected to the bottom surface of the gear 14, and the bottom end of the short column is fixedly connected to the top surface of the handle 11. The handle 11 and the gear 14 are rotatably connected to the base 10 through the same cylinder. Two slide grooves are symmetrically provided above the base 10. The two slide grooves are located on both sides of the rotating hole. Different sliders are fixedly connected to the bottom of the two rack plates 13, and the shape and size of the sliders are similar to those of the slide grooves. The sliders slide in the slide grooves. When in use, the handle 11 is turned, and the gear 14 will rotate following the movement direction of the handle 11. At this time, the rack plates 13 on both sides of the gear 14 engage with the rotation of the gear 14, thereby driving the two relative inner support blocks 12 to move, thereby realizing the movement of the inner support blocks 12 at both ends to simultaneously contract inward or expand outward.
[0028] like Figure 1 and Figure 3As shown, a bracket 17 is fixedly connected to the top of the base 10, and the inside of the bracket 17 is slidably connected to the first clamping block 18 and the second clamping block 21. The first clamping block 18 is fixedly connected to the threaded rod 19 on the side close to the second clamping block 21, and the second clamping block 21 is slidably connected to the threaded rod 19; Figure 3 As shown, a threaded ring 20 is rotatably connected to a side of the second clamping block 21 away from the first clamping block 18 , and the threaded ring 20 is threadedly connected to the threaded rod 19 .
[0029] The working principle is as follows: the bracket 17 is an inverted U-shaped structure, and square openings are provided on both sides of the bracket 17. The square openings are used to touch the first clamping block 18 and the second clamping block 21. A trapezoidal slide groove is provided on the inner top surface of the bracket 17. A trapezoidal slider is fixedly connected above the first clamping block 18 and the second clamping block 21 respectively. The trapezoidal slider slides in the trapezoidal slide groove and is connected by shape. A circular hole is provided inside the second clamping block 21. The diameter of the circular hole is larger than the diameter of the threaded rod 19, so that the threaded rod 19 can slide in the circular hole. The second clamping block 21 is provided with an annular groove on one side of the first clamping block 18. The inner ring of the annular groove is provided with a shaft ring consistent with the bearing function. The annular groove is rotatably connected to the threaded ring 20 by means of the shaft ring. When in use, the connecting rod is clamped into the boss 15, and the handle 11 is rotated to rotate the gear 14, thereby driving the rack plates 13 on both sides of the gear 14 to engage at the same time, thereby driving the inner support blocks 12 connected to the two rack plates 13 to move, so that the inner support blocks 12 at both ends expand outward at the same time. When the handle 11 contacts the inner wall of the connecting rod, stop rotating the handle 11, and support the inner side of the connecting rod with the support force of the inner support block 12. At this time, pull the first clamping block 18 to make the wall surface of the first clamping block 18 contact the wall surface of the connecting rod, and then rotate the threaded ring 20 to make the threaded ring 20 and the threaded rod 19 threadedly connected. At the same time, due to the threaded connection of the threaded ring 20, the second clamping block 21 will be pushed to move, and the second clamping block 21 will continue to approach the first clamping block 18. When the wall surface of the second clamping block 21 contacts the other side wall of the connecting rod, stop rotating the threaded ring. At this time, the first clamping block 18 and the second clamping block 21 clamp the connecting rod to fix the position of the connecting rod; in this process, the support block 12 can adapt to the shape of the inside of the connecting rod and fix the connecting rod by supporting, while the first clamping block 18 and the second clamping block 21 adapt to the shape of the outside of the connecting rod by sliding clamping, thereby effectively fixing the inside and outside of the connecting rod, thereby avoiding deviation of the drying position during punching.
[0030] like Figure 3 and Figure 4 As shown, the top surface of the bracket 17 is fixedly connected to a multi-position slide plate 22, and two multi-position slide plates 22 are symmetrically arranged. A scale 23 is slidably connected between the two multi-position slide plates 22, and one end of the scale 23 is fixedly connected to a resistance plate 24 for a limit connecting rod; Figure 4 and Figure 5As shown, different springs 26 are fixedly connected to both sides of the other end of the scale 23 , and the two springs 26 are fixedly connected to different limit blocks 25 , respectively. The two limit blocks 25 are elastically connected to the same scale 23 via different springs 26 .
[0031] The working principle is as follows: the multi-position slide plate 22 is a wavy structure; a square slide is formed between the two multi-position slide plates 22; the width of the scale 23 is less than or equal to the square slide; a sliding groove is provided in the bottom surface of the square slide; a sliding block is fixedly connected to the bottom of the scale 23; the sliding block slides in the sliding groove; the moving direction of the scale 23 is limited by the connection relationship between the sliding block and the sliding groove; square grooves are symmetrically provided on both sides of the scale 23; one end of a spring 26 is fixedly connected in the square groove; a limit block 25 is fixedly connected to the other end of the spring 26; the limit block 25 is a square block with an arc surface; when in use, the resistance plate 24 is pulled, and the resistance plate 24 drives the scale 23 to slide; at this time, the limit block 25 passes through the multi-position slide The plate 22 is squeezed by the wave and is able to enter the next wave mouth with the help of the arc surface of the limit block 25. The connection between the resistance plate 24 and the scale 23 is the zero scale line. The length of the bracket 17 is equal to the distance between the centers of the holes 16 at both ends. The bracket 17 is provided with an arc-shaped opening just above the hole 16. When the scale reaches the top of the arc-shaped opening of the bracket 17, it is the appropriate distance. At this time, the position of the connecting rod can be fixed by the inner support clamping assembly; the scale 23 and the resistance plate 24 are used to limit the position of the connecting rod, and the length of the scale 23 is determined by the position of the arc-shaped opening of the bracket 17. This not only avoids the disappearance of the mark, but also ensures the correct punching position with the help of accurate scales, thereby ensuring the use of the connecting rod and avoiding material waste.
[0032] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A connecting rod punching tool, comprising a base (10), characterized in that: A measuring assembly for marking the length of the connecting rod and an inner support clamping assembly for assisting the punching of the connecting rod are arranged above the base (10), the measuring assembly comprises a multi-position slide plate (22), a scale (23) and a limit block (25), the multi-position slide plate (22) is fixedly connected to the base (10), the scale (23) is slidably connected to the multi-position slide plate (22), the limit block (25) is elastically connected to the scale (23), and the limit block (25) is movably connected to the multi-position slide plate (22); The inner support clamping assembly comprises a rack plate (13), a gear (14), a first clamping block (18), a threaded rod (19) and a second clamping block (21); the gear (14) is rotatably connected to the base (10); the rack plate (13), the first clamping block (18) and the second clamping block (21) are all slidably connected to the base (10); the rack plate (13) and the gear (14) are transmission-connected; the threaded rod (19) is rotatably connected to the first clamping block (18); and the second clamping block (21) is movably connected to the threaded rod (19).
2. A connecting rod punching tool according to claim 1, characterized in that: The base (10) is rotatably connected to a handle (11) inside, the top of the handle (11) is fixedly connected to a gear (14), the top of the base (10) is fixedly connected to two fixing columns, the two fixing columns are symmetrically arranged with the gear (14) as a symmetry point, the tops of the two fixing columns are fixedly connected to a boss (15), the boss (15) is located directly above the gear (14), and different hole grooves (16) are symmetrically opened at both ends of the boss (15).
3. A connecting rod punching tool according to claim 1, characterized in that: Two rack plates (13) are provided, the two rack plates (13) are located on both sides of the gear (14), the two rack plates (13) are meshed with the same gear (14), different inner support blocks (12) are fixedly connected above the two rack plates (13), the two inner support blocks (12) are symmetrical with the same gear (14), the rack plates (13) and the inner support blocks (12) are vertically distributed, and the two rack plates (13) are slidably connected to the same base (10).
4. The connecting rod punching tool according to claim 1, characterized in that: A bracket (17) is fixedly connected to the top of the base (10); the inside of the bracket (17) is slidably connected to a first clamping block (18) and a second clamping block (21); a side of the first clamping block (18) close to the second clamping block (21) is fixedly connected to a threaded rod (19); and the second clamping block (21) is slidably connected to the threaded rod (19).
5. The connecting rod punching tool according to claim 1, characterized in that: A threaded ring (20) is rotatably connected to a side of the second clamping block (21) away from the first clamping block (18), and the threaded ring (20) is threadedly connected to the threaded rod (19).
6. A connecting rod punching tool according to claim 4, characterized in that: The top surface of the bracket (17) is fixedly connected to a multi-position slide plate (22), two of the multi-position slide plates (22) are symmetrically arranged, a scale (23) is slidably connected between the two multi-position slide plates (22), and one end of the scale (23) is fixedly connected to a resistance plate (24) for a limiting connecting rod.
7. The connecting rod punching tool according to claim 1, characterized in that: Different springs (26) are fixedly connected to the two sides of the other end of the scale (23), and the two springs (26) are fixedly connected to different limit blocks (25), respectively. The two limit blocks (25) are elastically connected to the same scale (23) via different springs (26).