A welding aid and clamping assembly therefor

Abstract

The utility model discloses a kind of welding auxiliary tool and its clamping assembly, comprising: first block, second block and transmission mechanism, first block has first guide slot on it, first guide slot is through first block, first block has first wall on it;Second block is adapted to install in first guide slot, second block can be moved along the extension direction of first guide slot, i. e. first direction, second block has second wall on it, first wall and second wall are arranged perpendicular to the extension direction of first guide slot.The utility model simultaneously realizes the purpose of pushing first block to "front" and pulling second block to "back" by single rotation eccentrically arranged wheel body part, cooperate with first wall on first block and second wall on second block oppositely arranged to simultaneously compress different workpieces, achieve the purpose of clamping two groups of pin line pairs by single operation, it is fast and simple to operate, moreover, structure design is ingenious, can improve clamping efficiency while possibly reducing cost, hit two birds with one stone.

Description

Technical Field

[0001] This utility model relates to the field of welding clamping technology, and in particular to a welding auxiliary tooling and its clamping components. Background Technology

[0002] Currently, the clamping of the stator pins and busbar pins during the welding of flat wire motors is not only for "fixation," but also to resist thermal deformation and maintain absolute relative positional accuracy during the welding process.

[0003] However, in the existing technology, the clamping operation for holding the stator pins and busbar pins of flat wire motors is either carried out manually, which is inefficient and has low positioning accuracy; or it is carried out by a clamp that integrates mechanical, pneumatic / hydraulic and sensing technologies, which is not only complex in structure design, but can only clamp a single pin pair in a single operation, resulting in unsatisfactory operating efficiency compared to the cost of clamping equipment. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a welding auxiliary tooling and its clamping components.

[0005] The present invention proposes a clamping assembly comprising: a first block, a second block, and a transmission mechanism. The first block has a first guide groove that penetrates through the first block, and the first block has a first wall. The second block is adapted to be installed in the first guide groove and can move along the extension direction of the first guide groove, i.e., a first direction. The second block has a second wall, and both the first wall and the second wall are arranged perpendicular to the extension direction of the first guide groove. The transmission mechanism can move the first block to a first preset position so that the first wall on the first block presses the workpiece along the first direction. The transmission mechanism can also move the second block in the opposite direction along the first direction to a second preset position so that the second wall on the second block presses another workpiece.

[0006] Preferably, it also includes: a limiting plate, which is installed on the base and has a first oblong groove and a second oblong groove; The first circular protrusion is fixed to the first block and passes through the first waist-shaped slot; The second circular protrusion is fixed to the second block and passes through the second waist-shaped slot. During the process of the transmission mechanism linking the first block to move to the first preset position, the first circular protrusion gradually moves from abutting against the upstream semicircle in the first waist-shaped slot in the direction of movement of the first block to abutting against the downstream semicircle in the first waist-shaped slot. During the process of the transmission mechanism linking the second block to move to the second preset position, the second circular protrusion gradually moves from abutting against the downstream semicircle of the first block in the second waist-shaped slot to abutting against the upstream semicircle in the second waist-shaped slot.

[0007] Preferably, the transmission mechanism specifically includes: a second shaft, the axis of which is arranged perpendicular to the first direction; The first shaft has its axis arranged along a first direction. One end of the shaft is fixed to the second block in the first guide groove, and the other end movably passes through the first block and is rotatably connected to the second shaft. The operating component includes: a grip portion and a wheel portion extending from one end of the grip portion, the wheel portion being eccentrically connected to the second axle, and the wheel portion abutting against the first block; When the operating grip drives the wheel to rotate in a direction perpendicular to the first direction, the wheel will push the first block and simultaneously pull the second block, causing the first circular protrusion and the second circular protrusion to move closer or further apart. The process of the first circular protrusion and the second circular protrusion moving closer together is the process of the transmission mechanism linking the first block to move to the first preset position and simultaneously linking the second block to move to the second preset position.

[0008] Preferably, it also includes a spring, which is coaxially sleeved on the first shaft. The spring is located at the end of the first guide groove away from the first wall, and the two ends of the spring abut against the second block and the end wall of the first guide groove, respectively, to apply a resistance torque to the eccentric wheel that is opposite to its rotation trend.

[0009] Preferably, the first block has a notch that penetrates the first block perpendicular to a first direction, and the first wall is the inner wall of the notch.

[0010] Preferably, the second block has a through hole perpendicular to the first direction, and the second wall is the inner wall of the through hole.

[0011] Preferably, a guide block is detachably installed at the bottom of the limiting plate, and a second guide groove is arranged on the guide block. The first block is adapted to be installed in the second guide groove and can move back and forth along the extension direction of the second guide groove.

[0012] Preferably, the wheel body and the second shaft body are detachably connected by bolts.

[0013] Preferably, the first block has an arc-shaped groove at one end near the wheel body portion, and the arc-shaped groove matches the rim contour of the wheel body portion.

[0014] This utility model also provides a welding auxiliary fixture, which has the above-mentioned clamping components.

[0015] In this invention, the eccentrically positioned wheel section achieves the simultaneous forward pushing of the first block and backward pulling of the second block through a single rotation. Furthermore, the opposing first walls on the first block and the second walls on the second block simultaneously clamp different workpieces (i.e., pin pairs), enabling the clamping of two sets of pin pairs in a single operation. This design is not only quick and simple to operate, but also ingeniously designed, avoiding the use of expensive electrical equipment. It achieves both high clamping efficiency and cost-effectiveness. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the clamping assembly proposed in this utility model; Figure 2 This is a schematic diagram of the first block, the second block, and the transmission mechanism of the clamping assembly proposed in this utility model; Figure 3 This is a schematic diagram of the first block and the guide block of the clamping assembly proposed in this utility model; Figure 4 This is a schematic diagram of the clamping assembly proposed in this utility model before the first and second blocks move and the limiting plate. Figure 5 This is a schematic diagram of the clamping assembly proposed in this utility model after the first and second blocks have moved and are positioned relative to the limiting plate. Figure 6 This is a schematic diagram of the clamping assembly proposed in this utility model mounted on a flat wire stator via a base. Detailed Implementation

[0017] Reference Figure 1 The present invention proposes a clamping assembly 2, which can be mounted on a flat wire stator 4 via a base 1 to form a clamping assembly 2. Figure 6 The welding auxiliary tooling shown in the figure has the following main function: to clamp the pin pair consisting of the first type of pin wire on the flat wire stator 4 and the second type of pin wire on the busbar 5, so as to ensure the subsequent welding quality.

[0018] Specifically, such as Figures 2-5As shown: The clamping assembly 2 specifically includes a first block 21, a second block 22, a transmission mechanism 24, a limiting plate 23, a first circular protrusion 212, and a second circular protrusion 221. The first block 21 has a first guide groove 211 that penetrates the first block 21, and the first block 21 has a first wall. The second block 22 is adapted to be installed in the first guide groove 211 and can move along the extension direction of the first guide groove 211, i.e., the first direction. The second block 22 has a second wall, and both the first wall and the second wall are arranged perpendicular to the extension direction of the first guide groove 211. The first block 21 has a notch 213 that penetrates the first block 21 perpendicular to the first direction, and the first wall is the inner wall of the notch 213. The second block 22 has a through hole 222 that penetrates the second block 22 perpendicular to the first direction, and the second wall is the inner wall of the through hole 222. The contour shapes of the first wall and the second wall match the shape of the pin pair to be clamped. The limiting plate 23 is installed on the base. A guide block 26 is detachably installed on the bottom of the limiting plate 23. A second guide groove 261 is arranged on the guide block 26. The first block 21 is adapted to be installed in the second guide groove 261 and can move back and forth along the extension direction of the second guide groove 261. The limiting plate 23 is provided with a first waist-shaped slot 231 and a second waist-shaped slot 232. A first circular protrusion 212 is fixed on the first block 21 and passes through the first waist-shaped slot 231. A second circular protrusion 221 is fixed on the second block 22 and passes through the second waist-shaped slot 232.

[0019] The operator can control the first block 21 and the second block 22 to perform the following clamping operations by operating the transmission mechanism 24: the transmission mechanism 24 can move the first block 21 to the first preset position so that the first wall on the first block 21 pushes one of the first type pins in the group to press one of the second type pins in the group. The transmission mechanism 24 will then move the second block 22 to the second preset position so that the second wall on the second block 22 pushes another of the first type pins in the group to press another of the second type pins in the group, thereby achieving the effect of clamping the pin pair. During the process of the transmission mechanism 24 moving the first block 21 to the first preset position, the first circular protrusion 212 gradually moves from abutting against the upstream semicircle of the first block 21 in the first waist-shaped slot 231 in the direction of movement to abutting against the downstream semicircle of the first waist-shaped slot 231; during the process of the transmission mechanism 24 moving the second block 22 to the second preset position, the second circular protrusion 221 gradually moves from abutting against the downstream semicircle of the first block 21 in the second waist-shaped slot 232 in the direction of movement to abutting against the upstream semicircle of the second waist-shaped slot 232.

[0020] Specifically, the specific structure of the aforementioned transmission mechanism 24 is as follows: Figure 2 and Figure 5As shown, it includes: a second shaft 242, a first shaft 241, and an operating member 243. The axis of the second shaft 242 is arranged perpendicular to the first direction; the axis of the first shaft 241 is arranged along the first direction. One end of the first shaft 241 is fixed to the second block 22 in the first guide groove 211, and the other end of the first shaft 241 movably passes through the first block 21 and is rotatably connected to the second shaft 242. The operating member 243 includes a gripping part 2431 and a wheel part 2432 extending from one end of the gripping part 2431. The wheel part 2432 is eccentrically connected to the second shaft 242 and abuts against the first block 21. The end of the first block 21 near the wheel part 2432 has an arc-shaped groove, and the arc-shaped groove matches the rim contour of the wheel part 2432. When operating the clamping assembly 2, the operator can operate the gripping part 2431 to drive the wheel part 2432 to rotate 180° in a direction perpendicular to the first direction. The wheel part 2432 pushes the first wall of the first block 21 to press the first type of pin wire in the pin wire pair. During this process, the wheel part 2432 simultaneously pulls the first shaft 241 and the second block 22 backward through the second shaft 242 until the second wall on the second block 22 can press the first type of pin wire in another pin wire pair. This allows the first type of pin wire to press the second type of pin wire in the pin wire pair, forming a push-pull motion process to achieve the clamping effect. The operation is simple and convenient, which helps to improve processing efficiency.

[0021] It is worth noting that during the clamping process, the first circular protrusion 212 on the first block 21 and the second circular protrusion 221 on the second block 22 approach each other. The sum of the formation of the first circular protrusion 212 and the second circular protrusion 221 is exactly equal to the eccentricity of the wheel body 2432. This design can precisely control the movement distance of the first block 21 and the second block 22. By replacing the limiting plate 23 with different lengths of the first waist-shaped slot 231 and the second waist-shaped slot 232, this clamping assembly 2 can also be applied to flat wire stators 4 with different first spacings and busbars 5 with different second spacings. Moreover, the wheel body 2432 and the second shaft 242 are detachably connected by bolts. After replacing the limiting plate 23, the operating member 243 can also be replaced. The operating member 243 with different eccentricities of the wheel body 2432 can be installed according to the lengths of the first waist-shaped slot 231 and the second waist-shaped slot 232. This increases the possibility of modification of this utility model and makes it highly applicable.

[0022] After the first block 21 and the second block 22 reach the first preset position and the second preset position, in order to lock the positions of the first block 21 and the second block 22, a spring 25 is coaxially sleeved on the first shaft 241. The spring 25 is located at the end of the first guide groove 211 away from the first wall. The two ends of the spring 25 abut against the second block 22 and the end wall of the first guide groove 211, respectively. So that after the wheel body 2432 rotates 180°, the spring 25 can be squeezed, so that the spring 25 can apply a resistance torque to the wheel body 2432 opposite to its rotation trend, so as to achieve the locking effect by using the force of the spring 25, ensuring that the first block 21 and the second block 22 can be in the clamping position.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clamping assembly, characterized in that, include: The system comprises a first block, a second block, and a transmission mechanism. The first block has a first guide groove that penetrates through it and a first wall. The second block is fitted into the first guide groove and can move along the extension direction of the first guide groove, i.e., a first direction. The second block has a second wall, and both the first and second walls are arranged perpendicular to the extension direction of the first guide groove. The transmission mechanism can move the first block to a first preset position so that the first wall on the first block presses the workpiece along the first direction. The transmission mechanism will also move the second block in the opposite direction along the first direction to a second preset position so that the second wall on the second block presses another workpiece.

2. The clamping assembly according to claim 1, characterized in that, Also includes: The limiting plate, the first circular protrusion, and the second circular protrusion are provided. The limiting plate is installed on the base and has a first waist-shaped slot and a second waist-shaped slot. The first circular protrusion is fixed on the first block and passes through the first waist-shaped slot; the second circular protrusion is fixed on the second block and passes through the second waist-shaped slot; during the process of the transmission mechanism moving the first block to the first preset position, the first circular protrusion gradually moves from abutting against the upstream semicircle in the first waist-shaped slot in the direction of movement of the first block to abutting against the downstream semicircle in the first waist-shaped slot. During the process of the transmission mechanism linking the second block to move to the second preset position, the second circular protrusion gradually moves from abutting against the downstream semicircle of the first block in the second waist-shaped slot to abutting against the upstream semicircle in the second waist-shaped slot.

3. The clamping assembly according to claim 2, characterized in that, The transmission mechanism specifically includes: a second shaft, a first shaft, and an operating component. The axis of the second shaft is arranged perpendicular to the first direction; the axis of the first shaft is arranged along the first direction. One end of the first shaft is fixed to the second block in the first guide groove, and the other end of the first shaft movably passes through the first block and is rotatably connected to the second shaft. The operating component includes a grip portion and a wheel portion extending from one end of the grip portion. The wheel portion is eccentrically connected to the second axle and abuts against the first block. When the operating grip drives the wheel to rotate in a direction perpendicular to the first direction, the wheel will push the first block and simultaneously pull the second block, causing the first circular protrusion and the second circular protrusion to move closer or further apart. The process of the first circular protrusion and the second circular protrusion moving closer together is the process of the transmission mechanism linking the first block to move to the first preset position and simultaneously linking the second block to move to the second preset position.

4. The clamping assembly according to claim 3, characterized in that, It also includes a spring, which is coaxially sleeved on the first shaft. The spring is located at the end of the first guide groove away from the first wall. The two ends of the spring abut against the second block and the end wall of the first guide groove, respectively, to apply a resistance torque to the eccentric wheel that is opposite to its rotation trend.

5. The clamping assembly according to claim 1, characterized in that, The first block has a notch that runs through it perpendicular to the first direction, and the first wall is the inner wall of the notch.

6. The clamping assembly according to claim 1, characterized in that, The second block has a through hole perpendicular to the first direction, and the second wall is the inner wall of the through hole.

7. The clamping assembly according to claim 2, characterized in that, A guide block is detachably installed at the bottom of the limiting plate. A second guide groove is arranged on the guide block. The first block is adapted to be installed in the second guide groove and can move back and forth along the extension direction of the second guide groove.

8. The clamping assembly according to claim 3, characterized in that, The wheel body and the second axle body are detachably connected by bolts.

9. The clamping assembly according to claim 3, characterized in that, The first block has an arc-shaped groove at one end near the wheel body, and the arc-shaped groove matches the rim contour of the wheel body.

10. A welding auxiliary tooling, characterized in that, It has a clamping assembly as described in any one of claims 1-9.

Images