Encoder shell clamping jig

Abstract

The utility model relates to the field of encoder shell processing equipment, in particular to an encoder shell clamping jig which is characterized in that a locking piece, a rubber piece and a compression spring are arranged, when an elastic chuck is installed, the locking piece extends into a sliding groove, a ball is pushed by the edge of an abutting face along with movement of the locking piece and moves in the direction away from the center of a connecting block, and the elastic chuck is clamped in the sliding groove. And the compression spring is compressed to apply reverse elastic force to the ball so as to abut against the locking piece, so that the locking piece is oppositely connected with the connecting block. And meanwhile, the rubber part on the locking part is oppositely connected with the elastic chuck through friction force. When the elastic chuck needs to be replaced, the locking piece is pulled out upwards, the edge of the abutting face is separated from the ball, the ball and the compression spring are reset, the rubber piece is separated from the first connecting hole, the locking piece is disconnected with the connecting block and the elastic chuck, and therefore different elastic chucks can be replaced.

Description

Technical Field

[0001] This utility model relates to the field of encoder housing processing equipment, and specifically to an encoder housing clamping fixture. Background Technology

[0002] During encoder manufacturing, the encoder housing needs to be machined. This machining process requires the encoder housing to be held in place using a specialized jig, and... Figure 1 As shown, the encoder housing is generally square. In existing technologies, elastic clamps are typically used to hold the encoder housing. A drive mechanism moves the elastic clamps, causing the gaps in the clamps to shrink, thus securing the encoder housing. However, in existing technologies, the elastic clamps are usually fixed to the drive mechanism's fixing components with bolts. When the size of the encoder housing to be clamped changes, the elastic clamps are inconvenient to disassemble and replace. Utility Model Content

[0003] The technical solution adopted by this utility model to solve its technical problem is: to provide an encoder housing clamping fixture, comprising:

[0004] The outer sheath has an inner conical surface on its inner wall;

[0005] An elastic chuck, wherein the elastic chuck is provided with an outer conical surface corresponding to the inner conical surface;

[0006] A telescopic cylinder drives an elastic clamp to translate, causing the elastic clamp to tighten towards the central axis of the elastic clamp. The output end of the telescopic cylinder is provided with a connecting block.

[0007] The elastic chuck includes a placement groove, a first connecting hole, and a second connecting hole connected in sequence. The placement groove is used to place the encoder housing. The connecting block is provided with a sliding groove. The inner wall of the sliding groove is provided with a locking groove. A compression spring is provided in the locking groove. The compression spring is connected to a ball.

[0008] A locking component is provided with a pressing surface. After passing through the first connecting hole and the second connecting hole, the locking component extends into the sliding groove. As the locking component moves, the pressing surface pushes the ball away from the center of the connecting block, and the compression spring pushes the ball to press against the locking component. The locking component is provided with a limiting part, and a rubber part is sleeved on the limiting part. The rubber part presses against the inner wall of the first connecting hole.

[0009] Furthermore, the elastic clamp is provided with a plurality of through grooves distributed in a ring, the through grooves being arranged along the axial direction of the elastic clamp.

[0010] Furthermore, the cross-section of the pressure surface is a quarter-circle arc.

[0011] Furthermore, the diameter of the first connecting hole is larger than the diameter of the second connecting hole, the cross-sectional length of the limiting part is larger than the diameter of the second connecting hole, and the limiting part is located inside the first connecting hole.

[0012] Furthermore, the placement slot is a square slot.

[0013] Furthermore, the central axes of the placement groove, the first connecting hole, and the second connecting hole all coincide with the central axis of the elastic clamp.

[0014] Furthermore, the bottom of the elastic clamp is connected to an annular wall that is concentrically arranged with the elastic clamp, and the through groove is provided on the annular wall.

[0015] Furthermore, it also includes a carrier plate for fixing the telescopic cylinder, the outer sleeve is connected to the carrier plate, the carrier plate is provided with an anti-rotation shaft, and the elastic clamp is provided with an anti-rotation hole corresponding to the anti-rotation shaft.

[0016] The beneficial effects of this invention are as follows: By incorporating a locking component, a rubber component, and a compression spring, when installing the elastic clamp, the locking component is inserted into the sliding groove. As the locking component moves, the ball is pushed by the edge of the pressure surface and moves away from the center of the connecting block. The compression spring is compressed, applying a reverse elastic force to the ball, thereby holding the locking component against it and connecting the locking component and the connecting block. Simultaneously, the rubber component on the locking component is connected to the elastic clamp through friction. When the elastic clamp needs to be replaced, the locking component is pulled upwards, causing the edge of the pressure surface to disengage from the ball. The ball and compression spring return to their original positions, and the rubber component disengages from the first connecting hole, thus disconnecting the locking component from the connecting block and the elastic clamp, allowing for the replacement of different elastic clamps. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] In the picture: Figure 1 This is a three-dimensional structural diagram of the encoder housing mentioned in the background section;

[0019] Figure 2 This utility model provides an overall structural diagram of an encoder housing clamping fixture.

[0020] Figure 3 for Figure 2 A cross-sectional view of the encoder housing clamping fixture shown;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 for Figure 2 The diagram shows the three-dimensional structure of the elastic clamp.

[0023] Figure 6 for Figure 5 The diagram shows a three-dimensional structure of the elastic clamp from another perspective.

[0024] Explanation of reference numerals in the attached drawings: 100, encoder housing clamping fixture; 10, outer sheath; 11, inner conical surface; 20, telescopic cylinder; 21, connecting block; 211, sliding groove; 212, locking groove; 213, compression spring; 214, sphere; 30, elastic chuck; 31, through groove; 32, placement groove; 33, first connecting hole; 34, second connecting hole; 35, outer conical surface; 36, annular wall; 37, anti-rotation hole; 40, locking element; 41, pressing surface; 42, limiting part; 421, annular groove; 43, rubber part; 50, carrier plate; 51, anti-rotation shaft; 200, encoder housing. Detailed Implementation

[0025] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Please refer to Figure 2 This utility model provides an encoder housing clamping fixture 100, including an outer sheath 10, a telescopic cylinder 20, and an elastic clamp 30, as well as a locking member 40 and a carrier plate 50 for fixing the telescopic cylinder 20. The outer sheath 10 and the carrier plate 50 are fixedly connected. Furthermore, the carrier plate 50 is provided with an anti-rotation shaft 51, and the elastic clamp 30 is provided with an anti-rotation hole 37 corresponding to the anti-rotation shaft 51, thereby preventing the elastic clamp 30 from rotating relative to the outer sheath 10. At the same time, the anti-rotation shaft 51 and the anti-rotation hole 37 cooperate to guide the elastic clamp 30 when it translates.

[0027] Please refer to Figure 2 and Figure 3The inner wall of the outer sheath 10 is provided with an inner conical surface 11. The elastic chuck 30 has multiple annularly distributed through slots 31 arranged along the axial direction of the elastic chuck 30. The elastic chuck 30 has an outer conical surface 35 corresponding to the inner conical surface 11. The telescopic cylinder 20 drives the elastic chuck 30 to translate, causing the elastic chuck 30 to tighten towards its central axis. When it is necessary to clamp the encoder housing 200, the telescopic cylinder 20 drives the elastic chuck 30 to move along the inner conical surface 11. Due to the cone angle between the outer conical surface 35 and the inner conical surface 11, the force driving the elastic chuck 30 to move is converted into a radial contraction force along the diameter direction of the elastic chuck 30, causing the through slots 31 on the elastic chuck 30 to elastically deform. The elastic chuck 30 tightens uniformly towards the center, thereby clamping the encoder housing 200. Meanwhile, the outer conical surface 35 and the inner conical surface 11 cooperate to facilitate automatic centering when the elastic chuck 30 tightens, avoiding eccentricity, thereby ensuring the coaxiality and machining accuracy of the clamped encoder housing 200.

[0028] Please refer to Figure 3 and Figure 4 The output end of the telescopic cylinder 20 is provided with a connecting block 21. The elastic clamp 30 includes a placement groove 32, a first connecting hole 33, and a second connecting hole 34 connected in sequence. The placement groove 32 is used to place the encoder housing 200. The diameter of the first connecting hole 33 is larger than the diameter of the second connecting hole 34. The locking member 40 passes through the first connecting hole 33 and the second connecting hole 34 and is detachably connected to the connecting block 21. Furthermore, since the outer contour of the encoder housing 200 in this embodiment is square, the placement groove 32 is set as a square groove to facilitate clamping the encoder housing 200.

[0029] Understandably, the connecting block 21 and the piston rod of the telescopic cylinder 20 are connected by countersunk bolts.

[0030] Furthermore, the central axes of the placement groove 32, the first connecting hole 33, and the second connecting hole 34 all coincide with the central axis of the elastic chuck 30.

[0031] Please refer to Figure 3 and Figure 4The connecting block 21 is provided with a sliding groove 211, and the inner wall of the sliding groove 211 is provided with a pair of locking grooves 212. A compression spring 213 is provided in the locking groove 212, and a ball 214 is connected to the compression spring 213. The locking member 40 is provided with a pressing surface 41. The pressing surface 41 pushes the ball 214 away from the center of the connecting block 21 as the locking member 40 moves, and makes the ball 214 abut against the locking member 40. The locking member 40 is provided with a limiting part 42. The cross-sectional length of the limiting part 42 is greater than the diameter of the second connecting hole 34, and the limiting part 42 is located in the first connecting hole 33. Specifically, the cross-sectional size of the limiting part 42 is much larger than the diameter of the second connecting hole 34, so that when the elastic clamp 30 is tightened, the limiting part 42 restricts the locking member 40 from sliding.

[0032] A rubber component 43 is fitted onto the limiting part 42, and the limiting part 42 has an annular groove 421 that matches the rubber component 43. The rubber component 43 abuts against the inner wall of the first connecting hole 33. When the elastic clamp 30 is not tightened inward, the rubber component 43 keeps the limiting part 42 and the elastic clamp 30 relatively stationary through friction. When the elastic clamp 30 tightens inward, the inner wall of the first connecting hole 33 presses the rubber component 43 inward, reducing the pressure on the limiting part 42.

[0033] Furthermore, both the locking part 40 and the limiting part 42 are cylindrical structures, and the rubber part 43 is annular.

[0034] Furthermore, the cross-section of the pressing surface 41 is a quarter-circle arc. Specifically, the pressing surface 41 fits the contour of the sphere 214, and the pressing surface 41 is farther away from the telescopic cylinder 20 than the sphere 214, so that when the locking member 40 moves upward and disengages, the sphere 214 resets and moves out of the locking groove 212, and the sphere 214 is less likely to get stuck in the pressing surface 41 and affect the movement of the locking member 40.

[0035] When installing the elastic chuck 30, the locking member 40 is passed through the first connecting hole 33 and the second connecting hole 34 until it extends into the sliding groove 211. As the locking member 40 moves, the ball 214 gradually moves from being inserted into the pressing surface 41 to the edge of the pressing surface 41 and moves away from the center of the connecting block 21. The compression spring 213 is compressed, applying a reverse elastic force to the ball 214, thereby pushing the ball 214 against the locking member 40, so that the locking member 40 and the connecting block 21 are relatively connected. At the same time, the rubber part 43 on the locking member 40 is relatively connected to the elastic chuck 30 through friction. When it is necessary to replace the elastic chuck 30, the locking member 40 is pulled upward, so that the edge of the pressing surface 41 is disengaged from the ball 214. The ball 214 and the compression spring 213 are reset, and the rubber part 43 is disengaged from the first connecting hole 33, so that the locking member 40, the connecting block 21, and the elastic chuck 30 are disconnected, thereby allowing different elastic chucks 30 to be replaced.

[0036] It is understood that the different elastic clamps 30 mentioned in this embodiment refer to the different sizes of the placement slot 32 for placing the encoder housing 200, while the first connecting hole 33 and the second connecting hole 34 are the same size. Furthermore, since the elastic clamps 30 need to be tightened inwards, certain gaps are maintained between the limiting part 42 and the first connecting hole 33, the locking member 40 and the second connecting hole 34, and between the anti-rotation hole 37 and the anti-rotation shaft 51 in this embodiment.

[0037] Please refer to Figure 5 and Figure 6 The bottom of the elastic clamp 30 is connected to an annular wall 36 concentrically arranged with the elastic clamp 30, and a through groove 31 is provided on the annular wall 36. The through groove 31 extends to the annular wall 36, which makes the stress distribution on the elastic clamp 30 more uniform, reduces local deformation caused by excessive stress, and reduces the risk of fracture caused by stress concentration.

Claims

1. An encoder housing clamping fixture, characterized in that, include: The outer sheath has an inner conical surface on its inner wall; An elastic chuck, wherein the elastic chuck is provided with an outer conical surface corresponding to the inner conical surface; A telescopic cylinder drives an elastic clamp to translate, causing the elastic clamp to tighten towards the central axis of the elastic clamp. The output end of the telescopic cylinder is provided with a connecting block. The elastic chuck includes a placement groove, a first connecting hole, and a second connecting hole connected in sequence. The placement groove is used to place the encoder housing. The connecting block is provided with a sliding groove. The inner wall of the sliding groove is provided with a locking groove. A compression spring is provided in the locking groove. The compression spring is connected to a ball. A locking component is provided with a pressing surface. After passing through the first connecting hole and the second connecting hole, the locking component extends into the sliding groove. As the locking component moves, the pressing surface pushes the ball away from the center of the connecting block, and the compression spring pushes the ball to press against the locking component. The locking component is provided with a limiting part, and a rubber part is sleeved on the limiting part. The rubber part presses against the inner wall of the first connecting hole.

2. The encoder housing clamping fixture according to claim 1, characterized in that: The elastic clamp is provided with a plurality of through grooves distributed in a ring, and the through grooves are arranged along the axial direction of the elastic clamp.

3. The encoder housing clamping fixture according to claim 1, characterized in that: The cross-section of the pressure surface is a quarter circle.

4. The encoder housing clamping fixture according to claim 1, characterized in that: The diameter of the first connecting hole is larger than the diameter of the second connecting hole, the cross-sectional length of the limiting part is larger than the diameter of the second connecting hole, and the limiting part is located inside the first connecting hole.

5. The encoder housing clamping fixture according to claim 1, characterized in that: The placement slot is a square slot.

6. The encoder housing clamping fixture according to claim 1, characterized in that: The central axes of the placement slot, the first connecting hole, and the second connecting hole all coincide with the central axis of the elastic clamp.

7. The encoder housing clamping fixture according to claim 2, characterized in that: The bottom of the elastic clamp is connected to an annular wall that is concentrically arranged with the elastic clamp, and the through groove is provided on the annular wall.

8. The encoder housing clamping fixture according to claim 1, characterized in that: It also includes a carrier plate for fixing the telescopic cylinder, the outer sleeve is connected to the carrier plate, the carrier plate is provided with an anti-rotation shaft, and the elastic clamp is provided with an anti-rotation hole corresponding to the anti-rotation shaft.

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